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Peer-Reviewed Journal Articles

  1. Ergun Simsek and Harish Reddy Manyam, "Classification with electromagnetic waves," IET Microwaves, Antennas, and Propagation, Oct. 2024. [Download] [DOI: 10.1049/mia2.12522]
  2. Ergun Simsek, Raonaqul Islam, Sumya Oishe, Curtis R. Menyuk, "Substrate Optimization with Adjoint Method and Layered Medium Green's Functions," JOSA B, vol. 41, no. 10, pp. 2259–2265, 2024. [Download] [DOI: 10.1364/JOSAB.532752]
  3. Raonaqul Islam, Ishraq Md. Anjum, Curtis R. Menyuk, and Ergun Simsek, "Study of an MoS2 phototransistor using a compact numerical method enabling detailed analysis of 2D material phototransistors," Scientific Reports, vol. 14, no. 15269, 2024. [Download] [DOI: 10.1038/s41598-024-66171-1]
  4. Ergun Simsek, Alexander S. Hastings, David A. Tulchinsky, Keith J. Williams, and Curtis R. Menyuk, "A Simple Numerical Model to Estimate the Temperature Distributions Over Photodetectors in Steady-State," IEEE Photonics Journal, vol. 16, no. 3, June 2024. [Download] [DOI: 10.1109/JPHOT.2024.3397857]
  5. E. K. Cho and E. Simsek, "Enhancing the Resolution of Local Near-Field Probing Measurements with Machine Learning," IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 3, pp. 1515--1519, March 2024. [Download] [DOI: 10.1109/TMTT.2023.3312036]
  6. I. Md Anjum, E. Simsek, S. E. Jamali Mahabadi, T. F. Carruthers, C. R. Menyuk, J. C. Campbell, D. A. Tulchinsky, K. J. Williams, "Use of Evolutionary Optimization Algorithms for the Design and Analysis of Low Bias, Low Phase Noise Photodetectors," Journal of Lightwave Technology, vol. 41, no. 23, pp. 7285--7291, Dec. 2023. [Download] [DOI: 10.1109/JLT.2023.3330099]
  7. E. Simsek, I. Md Anjum, T. F. Carruthers, C. R. Menyuk, J. C. Campbell, D. A. Tulchinsky, K. J. Williams, "Fast Evaluation of RF Power Spectrum of Photodetectors with Windowing Functions," IEEE Trans. on Electron Devices, vol. 70, no. 7, pp. 3643-3648,July 2023. [Download] [DOI: 10.1109/TED.2023.3275553]
  8. M. Soroush, E. Simsek, G. Moille, K. Srinivasan, and C. R. Menyuk, "Predicting broadband resonator-waveguide coupling for microresonator frequency combs through fully connected and recurrent neural networks and attention mechanism," ACS Photonics, 6, 1795–1805, 2023. [Download] [DOI: 10.1021/acsphotonics.3c00054]
  9. E. Simsek, "Machine Learning Exercises on One Dimensional Electromagnetic Inversion," IEEE Transactions on Antennas and Propagation, vol. 69, no. 10, pp. 6797-6805, Oct. 2021. [Download] [DOI: 10.1109/TAP.2021.3069519]
  10. E. Simsek, "Determining optical constants of 2D materials with neural networks from multi-angle reflectometry data," IOP Machine Learning: Science and Technology, vol. 1, no. 1, Feb. 2020. [Download] [DOI: 10.1088/2632-2153/ab6d5f]
  11. B. Mukherjee, N. Kaushik, R. P. N. Tripathi, A. M. Joseph, P. K. Mohapatra, S. Dhar, G. V. Pavan Kumar, S. Lodha, and E. Simsek, "Exciton Emission Intensity Modulation of Monolayer MoS2 via Au Plasmon Coupling," Nature Scientific Reports, vol. 7, 41175, Jan. 2017. [Download] [DOI: 10.1038/srep41175]
  12. B. Mukherjee and E. Simsek, "Utilization of monolayer MoS2 in Bragg stacks and metamaterial structures as broadband absorbers," Optics Communications, vol. 369, pp. 89-93, 2016. [Download] [DOI: 10.1016/j.optcom.2016.02.038]
  13. F. Tseng, E. Simsek, and D. Gunlycke, "Using Dark States for Exciton Storage in Transition-Metal Dichalcogenides," J. Phys.: Condens. Matter, vol. 28, 034005 (6pp), 2016. [Download] [DOI: 10.1088/0953-8984/28/3/034005]
  14. B. Mukherjee and E. Simsek, “Absorptance of PbS Quantum Dots Thin Film Deposited On Trilayer MoS2,” Advanced Materials Letters, vol. 6, no. 11, pp. 936-940, 2015. [Download] [DOI: 10.5185/amlett.2015.6094]
  15. E. Simsek and B. Mukherjee, "Visibility of Atomically Thin Layered Materials Buried in Silicon Dioxide," IOP Nanotechnology, vol. 26, no. 45, 455701, October 2015. [Download] [DOI: 10.1088/0957-4484/26/45/455701]
  16. B. Mukherjee and E. Simsek, "Plasmonics Enhanced Average Broadband Absorption of Monolayer MoS2," Plasmonics, vol. 11, pp. 1-5 (2015). [Download] [DOI: 10.1007/s11468-015-0053-9]
  17. B. Mukherjee, W. S. Leong, Y. Li, H. Gong, L. Sun, Z. X. Shen, E. Simsek, and J. T. L. Thong, "Raman analysis of gold on WSe2 single crystal film," Materials Research Express, vol. 2, 065009 (2015). [Download] [DOI: 10.1088/2053-1591/2/6/065009]
  18. B. Mukherjee, F. Tseng, D. Gunlycke, K. K. Amara, G. Eda, and E. Simsek, "Complex electrical permittivity of the monolayer molybdenum disulfide (MoS2) in near UV and visible," Optical Materials Express, vol. 5, no. 2, pp. 447-455 (2015). [Download] [DOI: 10.1364/OME.5.000447]
  19. R. Sahin, S. Akturk, and E. Simsek, "Quantifying the Quality of Femtosecond Laser Ablation of Graphene," Applied Physics A, vol. 116, no. 2, pp 555-560, Aug. 2014. [Download] [DOI: 10.1007/s00339-014-8522-0]
  20. R. Sahin, E. Simsek, and S. Akturk, "Nanoscale Patterning of Graphene through Femtosecond Laser Ablation," Applied Physics Letters, vol. 104, 053118, 2014. [Download] [DOI: 10.1063/1.4864616]
  21. Chenran Ye, Khan Sikandar, Zhuoran Li, E. Simsek, V. J. Sorger, "λ-Size ITO and Graphene-based Electro-optic Modulators on SOI" IEEE Journal of Selected Topics in Quantum Electronics, vol. 20, no. 4, 3400310, 2014. [Download] [DOI: 10.1109/JSTQE.2014.2298451]
  22. E. Simsek, "Graphene in Layered Medium Applications" Microwave and Optical Technology Letters, vol. 55, no. 10, pp. 2293-2296, Oct. 2013. [Download] [DOI: 10.1002/mop.27838]
  23. R. Sahin, Y. Morova, E. Simsek, S. Akturk, "Bessel-Beam-Written Nanoslit Arrays and Characterization of their Optical Response," Applied Physics Letters, vol. 102, no. 19, 193106, May 2013. [Download] [DOI: 10.1063/1.4805358]
  24. E. Simsek, "A Closed-Form Approximate Expression for the Optical Conductivity of Graphene," Optics Letters, vol 38, no. 9, pp. 1437-1439, May 2013. [Download] [DOI: 10.1364/OL.38.001437]
  25. E. Simsek, "Improving Tuning Range and Sensitivity of Localized SPR Sensors with Graphene," IEEE Photonics Technology Letters, vol 25, no. 9, pp. 867-870, May 2013. [Download] [DOI: 10.1109/LPT.2013.2253316]
  26. E. Simsek and S. Akturk, "Plasmonic Enhancement during Femtosecond Laser Drilling of sub- Wavelength Holes in Metals," Plasmonics, vol. 6, no. 4, pp. 767-772, 2011. [Download] [DOI: 10.1007/s11468-011-9262-z]
  27. E. Simsek, "Full Analytical Model for Obtaining Surface Plasmon Resonance Modes of Metal Nanoparticle Structures Embedded in Layered Media," Optics Express, vol. 18, no. 2, pp. 1722-1733, January 2010. [Download] [DOI: 10.1364/OE.18.001722]
  28. E. Simsek, "On the Surface Plasmon Resonance Modes of Nanoparticle Chains and Arrays," Plasmonics, vol. 4, no. 3, pp. 223-230, September 2009. [Download] [DOI: 10.1007/s11468-009-9096-0]
  29. B. K. Sinha, E. Simsek, and S. Asvadurov, "Influence of a Pipe Tool on Borehole Modes in a Fast Formation," Geophysics, vol. 74, no. 3, pp. E111-E123, May-June 2009. [Download] [DOI: 10.1190/1.3085644]
  30. Q. H. Liu, Y. Lin, J. Liu, J.H. Lee, and E. Simsek "A 3-D Spectral Integral Method for Surface Integral Equations", IEEE Microwave and Wireless Component Letters, vol. 19, no. 2, pp. 62-64, Feb. 2009. [Download] [DOI: 10.1109/LMWC.2008.2011305]
  31. E. Simsek and B. K. Sinha, "Analysis of Noncircular Fluid Filled Boreholes in Elastic Formations Using a Perturbation Mode," Journal of the Acoustical Society of America, 124(1), pp. 213-7, July, 2008. [Download] [DOI: 10.1121/1.2931954]
  32. K. B. Crozier, E. Togan, E. Simsek, and T. Yang, "Experimental Measurement of the Dispersion Relations of the Surface Plasmon Modes of Metal Nanoparticle Chains," Opt. Express, 15, pp. 17482-17493, 2007. [Download] [DOI: 10.1364/OE.15.017482]
  33. B. Wei, E. Simsek, C. Yu, and Q. H. Liu, "Three-Dimensional Electromagnetic Nonlinear Inversion in Layered Media by a Hybrid Diagonal Tensor Approximation - Stabilized Biconjugate Gradient Fast Fourier Transform Method," Waves in Random and Complex Media, vol. 17, no. 2, pp. 129-147, May 2007. [Download] [DOI: 10.1080/17455030601016117]
  34. B. Wei, E. Simsek, and Q. H. Liu, "Improved diagonal tensor approximation (DTA) and hybrid DTA/BCGS-FFT method for accurate simulation of 3-D inhomogeneous objects in layered media," Waves in Random and Complex Media, vol. 17, no. 1, pp. 55-66, Feb. 2007. [Download] [DOI: 10.1080/17455030600924949]
  35. B. K. Sinha, E. Simsek, and Q. H. Liu, "Elastic wave propagation in deviated wells in anisotropic formations," Geophysics, vol. 71, no. 6, pp. 191-202, Nov. 2006. [Download] [DOI: 10.1190/1.2358402]
  36. E. Simsek, J. Liu, and Q. H. Liu, "A Spectral Integral Method and Hybrid SIM/FEM for Layered Media," IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 11, pp. 3878-3884, Nov. 2006. [Download] [DOI: 10.1109/TMTT.2006.883647]
  37. E. Simsek, J. Liu, and Q. H. Liu, "A Spectral Integral Method (SIM) for Layered Media," IEEE Transactions on Antennas and Propagation, vol. 54, issue 6, pp. 1742-1749, June 2006. [Download] [DOI: 10.1109/TAP.2006.875500]
  38. E. Simsek, Q. H. Liu, and B. Wei, "Singularity subtraction for evaluation of Green's functions for multilayer media," IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 1, pp. 216-225, Jan. 2006. [Download] [DOI: 10.1109/TMTT.2005.860304]
  39. L. P. Song, E. Simsek, and Q. H. Liu, "A Fast 2-D Volume Integral Equation Solver for Scattering from Inhomogeneous Objects in Layered Media," Microwave and Optical Technology Letters, vol. 47, No. 2 , pp. 128-134, Oct. 2005. [Download] [DOI: 10.1002/mop.21101]

Selected Papers Presented at the International Conferences

  1. Raonaqul Islam, Curtis R. Menyuk, and Ergun Simsek, ``Effective Heat Dissipation From Plasmon Enhanced Monolayer WSe$_2$ Phototransistors," IEEE Photonics Conference, 10-14 November 2024, Rome, Italy. [Download]
  2. Sumya H. Oishe, Raonaqul Islam, Curtis R. Menyuk, and Ergun Simsek, "Broadband Substrate Optimization with Adjoint Method and Green's Functions," IEEE Photonics Conference, 10-14 November 2024, Rome, Italy. [Download]
  3. Ishraq M. Anjum, Ergun Simsek, Seyed Ehsan Jamali Mahabadi, Thomas F. Carruthers, Curtis R. Menyuk, "Sources of Nonlinearity in Phase Noise of MUTC Photodetectors at Comb-Line Frequencies," IEEE Photonics Conference, 10-14 November 2024, Rome, Italy. [Download]
  4. E. Simsek and R. Islam, "A Compact Numerical Model for Photodetectors Made from Two-Dimensional Materials," SPIE Optics + Photonics 2024, San Diego, CA, 18–22 August 2024. [Download]
  5. E. Simsek and E. Cho, "Resolution Enhancement with Machine Learning," accepted for an oral presentation at the SPIE Optics + Photonics 2024, San Diego, CA, 18–22 August 2024. [Download]
  6. E. Simsek and C. R. Menyuk, "Thermal Characterization of Modified Uni-Traveling Carrier Photodetectors: Insights into Temperature-Dependent Performance Metrics," accepted for an oral presentation at the SPIE Optics + Photonics 2024, San Diego, CA, 18–22 August 2024. [Download]
  7. R. Islam, I. Md Anjum, C. R. Menyuk, and E. Simsek, "Heat Management and Quantum Efficiency Enhancement of Phototransistors Made from Two-Dimensional Materials," accepted for an oral presentation at the OPTICA Sensing Congress 2024, 15 -- 19 July, 2024 in Toulouse, France. [Download]
  8. I. Md Anjum, A. S. Hastings, D. A. Tulchinsky, K. J. Williams, C. R. Menyuk, and E. Simsek, "Thermal Analysis of Photodetectors in Steady-State," accepted for a poster presentation at the OPTICA Sensing Congress 2024, 15 -- 19 July, 2024 in Toulouse, France. [Download]
  9. Ergun Simsek, Raonaqul Islam, Curtis Menyuk, "Numerical Modeling of Photodetectors Made from Two-Dimensional Materials," accepted for an oral presentation at the 2024 IEEE International Symposium on Antennas and Propagation and ITNC-USNC-URSI Radio Science Meeting on 14-19 July 2024 in Florence, Italy. [Download]
  10. Ergun Simsek and Emerson Cho, "Enhancement of Non-Destructive Measurement Resolution with Neural Networks," accepted for an oral presentation at the 2024 IEEE International Symposium on Antennas and Propagation and ITNC-USNC-URSI Radio Science Meeting on 14-19 July 2024 in Florence, Italy. [Download]
  11. Ergun Simsek, "Electromagnetic Classification," accepted for presentation at the 2024 IEEE International Symposium on Antennas and Propagation and ITNC-USNC-URSI Radio Science Meeting on 14-19 July 2024 in Florence, Italy. [Download]
  12. R. Islam and E. Simsek, “Modeling Two-Dimensional Material-Based Photodetectors with Finite- Difference Methods,” ACES 2024 Conference, May 19-23, 2024, Orlando, Florida, USA. [Download]
  13. E. Simsek and R. Islam, “Object Classification using Electromagnetic Data and Neural Networks,” ACES 2024 Conference, May 19-23, 2024, Orlando, Florida, USA. [Download]
  14. I. Anjum, E. Simsek, S. E. Jamali Mahabadi, T. F. Carruthers, and C. R. Menyuk, "Optimized MUTC Photodetector for Lower Phase Noise at Comb-Line Frequencies Below 40 GHz," 2023 Frontiers in Optics + Laser Science meeting (FiO LS 2023) Oct, 09-12, 2023, Tacoma, WA, USA.
    15. [Download]
  15. I. Anjum, E. Simsek, S. E. Jamali Mahabadi, T. F. Carruthers, and C. R. Menyuk, “Dual-Objective Numerical Optimization of MUTC Photodetectors for Frequency Comb Applications,” 2023 IEEE Research and Applications of Photonics in Defense (RAPID) Conference, Miramar Beach, FL, USA, Sept. 11–13, 2023. [Download]
  16. E. Simsek, M. Soroush, G. Moille, K. Srinivasan, C. R. Menyuk, "Attention Mechanisms for Broadband Feature Prediction," SPIE Optical Engineering + Applications 2023, San Diego, California, United States, 20 - 24 August 2023. [Download]
  17. E. Simsek and C. R. Menyuk, "Designing Silicon-Germanium Photodetectors with Numerical Optimization: The Tradeoffs and Limits," SPIE Active Photonic Platforms (APP) 2023, San Diego, California, United States, 20 - 24 August 2023. [Download]
  18. E. Simsek, M. Soroush, G. Moille, K. Srinivasan, C. R. Menyuk, "Attention Mechanisms for Broadband Feature Prediction for Electromagnetic and Photonic Applications," 2023 Conference on Lasers and Electro-Optics/Europe – European Quantum Electronics Virtual Conferences (CLEO/Europe-EQEC 2023), Munich, Germany, June 26-30, 2023. [Download]
  19. R. Islam, I. Md Anjum, C. R. Menyuk, and E. Simsek, "Designing Silicon-Germanium Photodetectors with Numerical Optimization: The Tradeoff Between Quantum Efficiency and Phase Noise," 2023 Conference on Lasers and Electro-Optics/Europe – European Quantum Electronics Virtual Conferences (CLEO/Europe-EQEC 2023), Munich, Germany, June 26–30, 2023. [Download]
  20. E. Simsek, "Energy Efficient Back-to-Back Neural Networks to Design Photonic Devices," 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2023), Paris, France, July 18 – 21, 2023. (invited)
  21. E. Simsek, "Designing Energy Efficient Neural Networks According to Device Operation Principles," 44th PhotonIcs and Electromagnetics Research Symposium (PIERS), Prague, Czechia, July 3–6, 2023.[Download]
  22. E. Simsek, I. Md Anjum, and C. R. Menyuk, "Designing Nonlinear Optoelectronic Devices with Numerical Optimization: Lessons Learned," 44th PhotonIcs and Electromagnetics Research Symposium (PIERS), Prague, Czechia, July 3–6, 2023.[Download]
  23. E. Simsek, I. Md Anjum, and C. R. Menyuk, "Solving Drift Diffusion Equations on Non-uniform Spatial and Temporal Domains,"44th PhotonIcs and Electromagnetics Research Symposium (PIERS), Prague, Czechia, July 3–6, 2023. [Download]
  24. E. Simsek, I. Md Anjum, T. F. Carruthers, and C. R. Menyuk, "Non-Uniform Time-Stepping and Windowing for Fast Simulation of Photodetectors," 2023 International Applied Computational Electromagnetics Society (ACES) Symposium, Monterey, CA, March 26--30, 2023. (invited) [Download]
  25. E. Simsek, I. Md Anjum, T. F. Carruthers, C. R. Menyuk, D. A. Tulchinsky. K. J. Williams, and J. C. Campbell, "Efficient and Accurate Calculation of Photodetector RF Output Power," 2022 IEEE Photonics Conference, Vancoiver, Canada, 13 - 17 November 2022. [Download]
  26. I. Md Anjum, E. Simsek, S. E. J. Mahabadi, T. F. Carruthers, and C. R. Menyuk, "Design and Analysis of Low Bias, Low Phase Noise Photodetectors for Frequency Comb Applications Using Particle Swarm Optimization," 2022 IEEE International Topical Meeting on Microwave Photonics, Online, 04 - 06 October 2022. [Download]
  27. E. Simsek, I. Md Anjum, T. F. Carruthers, and C. R. Menyuk, "Non-Uniform Time-Stepping For Fast Simulation of Photodetectors Under High-Peak-Power, Ultra-Short Optical Pulses," 22nd International Conference on Numerical Simulation of Optoelectronic Devices, Online, September 12-16, 2022. [Download]
  28. E. Simsek, I. Md Anjum, T. F. Carruthers, and C. R. Menyuk, "Designing Photodetectors with Machine Learning," Advanced Photonics Conference, Novel Optical Materials and Applications, Maastricht, Netherlands, July 24 -28, 2022. [Download]
  29. E. Simsek, "ODEMI: One Dimensional Electromagnetic Inversion Dataset to Study Machine Learning and Lessons Learned," Photonics and Electromagnetics Research Symposium, Hangzhou, 21-25 November 2021. [Download]
  30. E. Simsek, S. E. J. Mahabadi, I. Md Anjum, and C. R. Menyuk, "A Robust Drift-Diffusion Equations Solver Enabling Accurate Simulation of Photodetectors," Photonics and Electromagnetics Research Symposium, Hangzhou, 21-25 November 2021. [Download]
  31. I. Md Anjum, S. E. J. Mahabadi, E. Simsek, and C. R. Menyuk, "Calculation of the Phase Noise at Comb-Line Frequencies in a Frequency Comb," Frontiers in Optics 2021, Online, 01-04 November 2021. [Download]
  32. E. Simsek, S. E. J. Mahabadi, T. F. Carruthers, and C. R. Menyuk, "Photodetector Performance Prediction with Machine Learning," Frontiers in Optics 2021, Online, 01-04 November 2021. [Download]
  33. E. Simsek, S. E. J. Mahabadi, I. Md Anjum, and C. R. Menyuk, "Thinner and Faster Photodetectors Producing Lower Phase Noise," IEEE Photonics Conference 2021, Online, 18 – 21 October 2021. [Download]
  34. E. Simsek, "Fast Evaluation of Refractive Index with Machine Learning", Photonics and Electromagnetics Research Symposium, Rome, Italy, June 17-20, 2019.
  35. B. Mukherjee, S. Roy, E. Simsek, S. Ghosh, V. G. Achanta, and S. Lodha, "Plasmonic Enhancement in Anisotropic Thin Films of Rhenium Disulphide (ReS2)," IEEE Photonics Conference 2018, Reston, VA, USA, Sep. 30 - Oct. 4, 2018. [Download]
  36. E. Simsek, M. Yuan, and Q. H. Liu, "Field Effect Transistors Deploying Anisotropic Two-Dimensional Materials for Light Generation and Detection," 2018 Frontiers in Optics + Laser Science (FIO + LS) Conference, Washington, DC, USA, September 16 - 20, 2018. [Download]
  37. F. Tseng, E. Simsek, and D. Gunlycke, "Modeling excitons in transition-metal dichalcogenides," AVS 63rd International Symposium & Exhibition, Nashville, TN, Nov. 7-10, 2016.
  38. Ergun Simsek, "Solving Schrodinger Equation for Excitons in Multilayered Media," 2016 IEEE International Symposium on Antennas and Propagation (APSURSI), pp. 231-232, Fajardo, Puerto Rico, June 26 - July 1, 2016. [Download]
  39. B. Mukherjee and E. Simsek, "Light-Matter Interactions in Complex Media with 2D Materials, Metamaterials, and Quantum Dots," 2016 IEEE International Symposium on Antennas and Propagation (APSURSI), pp. 977-978, Fajardo, Puerto Rico, June 26 - July 1, 2016. [Download]
  40. B. Mukherjee, E. Simsek, B. Varghese, M. Zheng, E. S. Tok, and C. H. Sow, "Photoconductivity of Interconnected Nanowires and Their Electromagnetic-Circuit Co-Simulation," 2016 USNC-URSI Radio Science Meeting, pp. 63-64, Fajardo, Puerto Rico, June 26 - July 1, 2016. [Download]
  41. E. Simsek, B. Mukherjee, A. Guchhait, Y. T. Chan, "Enhanced absorption with quantum dots, metal nanoparticles, and 2D materials," SPIE Photonics West, San Francisco, CA, USA, 13-18 February 2016. [Download]
  42. E. Simsek and B. Mukherjee, "Keeping 2D materials visible even buried in soI wafers," SPIE Photonics West, San Francisco, CA, USA, 13-18 February 2016. [Download]
  43. F. Tseng, E. Simsek, and D. Gunlycke, "The Tri-Angular Lattice Exciton (3ALE) model: Exciton physics at the atomic scale," AVS 62st International Symposium & Exhibition, San Jose, CA, Oct 18–23, 2015.
  44. F. Tseng, E. Simsek, and D. Gunlycke, "Controlling exciton population in 2D transition metal dichalcogenides," Graphene Canada 2015, Montreal, Canada, October 14–16, 2015.
  45. F. Tseng, D. Gunlycke, and E. Simsek, "Theory and Applications of Strongly Bound Excitons in Layered Transition-Metal Dichalcogenides," 2015 IEEE Photonics Conference, 28th Annual Conference of the IEEE Photonics Society, Reston, Virginia USA, 4 - 8 October 2015. [Download]
  46. B. Mukherjee and E. Simsek, "Plasmonics Enhanced Average Absorption of Monolayer MoS2 in vis-NIR," 2015 IEEE Photonics Conference, 28th Annual Conference of the IEEE Photonics Society, Reston, Virginia USA, 4 - 8 October 2015. [Download]
  47. R. Sahin, T. Ersoy, E. Simsek, and S. Akturk, "Zeroth and First-order Bessel Beam Formation of Nanostructures on Thin-film Type Surfaces," 36th Progress In Electromagnetics Research Symposium (PIERS 2015), Prague, Czech Republic, 06-09 July, 2015.
  48. D. Gunlycke, F. Tseng, and E. Simsek, "Exciton Physics in Transition-Metal Dichalcogenides at the Atomic Scale," Advanced Photonics 2015, Boston, MA, USA, 27 June - 01 July 2015. [Download]
  49. R. Sahin, E. Simsek, S. Akturk, "Quantitative and Qualitative Studies of Femtosecond Laser Nanopatterning of Graphene," CLEO/Europe-EQEC 2015, Munich, Germany, 21-25 June 2015.
  50. B. Mukherjee and E. Simsek, "Enhancing Scattering and Absorption in Two-Dimensional Layered Material Systems with Surface Plasmons and Periodicity," the 31st International Review of Progress in Applied Computational Electromagnetics (ACES 2015), Williamsburg, VA, USA, March 22-26, 2015. [Download]
  51. F. Tseng, E. Simsek, D. Gunlycke, "Atomistic model for excitons: Capturing Strongly Bound Excitons in Monolayer Transition-Metal Dichalcogenides," APS March Meeting 2015, San Antonio, TX, USA, March 2-6, 2015.
  52. E. Simsek and B. K. Sinha, "Estimation of Depletion- or Injection-induced Changes in Reservoir Stresses using Time-lapse Sonic Data," 2014 IEEE International Ultrasonics Symposium, Chicago, IL USA, September 3-6, 2014. [Download]
  53. E. Simsek, "On The Development of A New Multi-Physics Solver for Atomically Thin Layered Material Systems," 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Memphis, Tennessee, USA, July 6-12, 2014. [Download]
  54. E. Simsek, "A Hybrid Spectral Integral - Finite Element Method for Layered Media Including Graphene-like Atomically Thin Layered Materials," 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Memphis, Tennessee, USA, July 6-12, 2014. [Download]
  55. R. Sahin, Y. Morova, E. Simsek, S. Akturk, "Electromagnetic Wave Propagation Through and Reflection from Metal Nano Stripes Fabricated with Femtosecond Laser Ablation," 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Memphis, Tennessee, USA, July 6-12, 2014. [Download]
  56. C. Ye, K. Sikandar, Z. Li, E. Simsek, V. Sorger, "A Performance Comparison of ITO and Graphene-based Electro-optic Modulators," 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Memphis, Tennessee, USA, July 6-12, 2014. [Download]
  57. R. Sahin, E. Simsek, S. Akturk, "Nanometer-Scale Structuring of Gold Thin-Films and Graphene by Femtosecond Laser Bessel Beams," CLEO 2014, the Conference on Lasers and Electro-Optics, San Jose, CA, USA, June 8-13, 2014. [Download]
  58. E. Simsek, "Graphene: A Two Dimensional Material in Three Dimensional Structures," 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013. [Download]
  59. R. Sahin, E. Simsek, and S. Akturk, "Double Surface Plasmon Resonances Obtained with Bessel-Beam-Written Nanoslits Arrays," The European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC 2013), Munich, Germany, May 12-16, 2013. [Download]
  60. E. Simsek, "Tunable graphene-based SPR Sensors," Smart Biomedical and Physiological Sensor Technology X (SPIE Defense, Security, and Sensing), 29 April - 3 May 2013, Baltimore, Maryland USA. [Download]
  61. E. Simsek, "Graphene Based Tunable SPR Sensors," APS March Meeting 2013, Baltimore, MD, USA, March 18-22, 2013.
  62. E. Simsek and Q. H. Liu, "Hybrid Optical Waveguides," 11th International Workshop on Finite Elements for Microwave Engineering (FEM2012), Estes Park, Colorado, USA, June 4-6, 2012.
  63. E. Simsek, J. Liu, and Q. H. Liu, "A Spectral Integral Method for the Analysis of Nano Wires," 30th URSI General Assembly and Scientific Symposium (XXXth URSI GA), Istanbul, Turkey, August 13-20, 2011. [Download]
  64. E. Simsek, "Conventional Computational Electromagnetics toward Nanoscale, Optical, and Plasmonic Applications," International Conference on High Performance Computing and Simulation, Istanbul, Turkey, July 4-8, 2011. (invited) [Download]
  65. E. Simsek and B. Sonmez, "Layered Medium Discrete Dipole Approximation," CEM 2011, Wraclow, Poland, April 11-14, 2011. [Download]
  66. E. Simsek and B. K. Sinha, "An Efficient Formulation for Harmonic Waves in Multilayered Cylindrical Structures and its Geophysical Applications," 19th International Geophysical Congress and Exhibition of Turkey, Ankara, November 23-26, 2010. [Download]
  67. B. K. Sinha and E. Simsek, "Sonic logging in deviated wellbores in the presence of a drill collar," 80th Annual International Meeting, Society of Exploration Geophysicists, Denver, CO, 17-22 Oct. 2010. [Download]
  68. E. Simsek and Q. H. Liu, "Design of Optical Devices Using Frequency Domain Solvers," International Symposium on Electromagnetic Theory, Berlin, Germany, August 16-19, 2010. [Download]
  69. E. Simsek, T. Aydogan, and G. Barlak, "Surface Plasmon Resonance Modes of Metal Nanostructures Embedded in Layered Media: A Full Analytical Method," PIERS 2010 in Cambridge, MA, USA 5-8 July, 2010.
  70. E. Simsek, "A More Realistic Coupled Dipole Approximation Model for Plasmonic Waveguides," ECIO 2010, Cambridge, UK, 7-9 April, 2010. [Download]
  71. E. Simsek and B. K. Sinha, "An Efficient Formulation for Harmonic Waves in Multilayered Cylindrical Structures," IEEE UFFC Symposium, 20-23 September, 2009, Roma, Italy. [Download]
  72. E. Simsek and Q. H. Liu, "Integral Equation Solvers and Their Applications in the Optical Regime," ICEAA 09, September 14-18, 2009, Torino, Italy.
  73. Q. H. Liu, B. K. Sinha, E. Simsek, "Time-Domain Numerical Models for Acoustoelasticity in Multidimensional Inhomogeneous Media," IEEE International Symposium on Antennas and Propagation, Charleston, South Carolina, June 1-5, 2009 (invited). [Download]
  74. E. Simsek, "Effective Refractive Index Approximation on the Surface Plasmon Resonance Modes of Metal Nanoparticle Chains and Arrays," PIERS 2009 in Moscow, RUSSIA, 18-21 August, 2009.
  75. E. Simsek, "Effects of Inhomogeneous Background to the Surface Plasmon Resonance Modes of Metal Nanoparticle Chains," IEEE CLEO Europe 2009, June 2009.
  76. E. Simsek and B. K. Sinha, "Estimation of borehole ellipticity using cross-dipole dispersions," 78th Annual International Meeting, Society of Exploration Geophysicists, Las Vegas, Nevada, Nov. 2008. [Download]
  77. E. Simsek and B. K. Sinha, "Influence of a Logging Tool on Modes of Noncircular Fluid-filled Boreholes in Elastic Formations," PIERS 2008, Cambridge, MA.
  78. Q. H. Liu, L. Yun, C. Yu, J.H. Lee, J. Liu, and E. Simsek, "Fast CEM Solvers Based on Volume and Surface Integral Equations," PIERS 2008, Cambridge, MA, July 2008.
  79. B. K. Sinha and E. Simsek, "Formation Stress Effects on Wave Propagation in a Fluid-filled Borehole," IEEE International Ultrasonics Symposium, New York, NY, Oct. 2007. [Download]
  80. E. Simsek, B. K. Sinha, S. Zeroug, and N. Bounoua, "Influence of breakouts on borehole sonic dispersions," 77th Annual International Meeting, Society of Exploration Geophysicists, San Antonio, TX, Sept. 2007. [Download]
  81. J. Liu, Y. Lin, J.H. Lee, E. Simsek, and Q. H. Liu, "Application of the hybrid spectral integral method with spectral element method," IEEE Antennas and Propagation Society International Symposium and URSI, Honolulu, HI, June 2007. [Download]
  82. B. K. Sinha, E. Simsek, and Qing-Huo Liu, "Elastic wave propagation in deviated wells in anisotropic formations,'' 76th Annual International Meeting, Society of Exploration Geophysicists, New Orleans, LA, Oct. 2006.
  83. J. Liu, E. Simsek, and Q. H. Liu, "A 3-dimensional Spectral Integral Method for Acoustic and Electromagnetic Wave Scattering,'' IEEE Antennas and Propagation Society International Symposium and URSI, Albuquerque, NM, July, 2006.
  84. J. Liu, J. H. Lee, E. Simsek, and Q. H. Liu, "A Hybrid Spectral Integral Method/Spectral Element Method for Electromagnetic Wave Scattering,'' IEEE Antennas and Propagation Society International Symposium and URSI, Albuquerque, NM, July, 2006.
  85. E. Simsek, J. Liu, Q. H. Liu, "A 3D Spectral Integral Method for Layered Media,'' IEEE Antennas and Propagation Society International Symposium and URSI, Albuquerque, NM, July, 2006.
  86. C. Yu, E. Simsek, and Q. H. Liu, "Accurate Simulation of Electromagnetic Waves Scattered by 3D Objects in a Multilayered Medium by a Surface Integral Equation Method,'' IEEE Antennas and Propagation Society International Symposium and URSI, Albuquerque, NM, July, 2006.
  87. E. Simsek, J. Liu, and Q. H. Liu, "A Spectral Integral Method (SIM) for Layered Media,'' IEEE Antennas and Propagation Society International Symposium and URSI, Abstract, Washington, DC, July 2005. [Download]
  88. E. Simsek, J. Liu, Q. H. Liu, "A 2D Hybrid Spectral-Integral/Finite-Element Method for Layered Media," IEEE Antennas and Propagation Society International Symposium and URSI, Albuquerque, NM, July, 2006.
  89. E. Simsek, J. Liu, and Q. H. Liu, "Fast Simulation of Periodic Structures in a Layered Medium", IEEE Antennas and Propagation Society International Symposium and URSI, Abstract, Washington, DC, July 2005.
  90. E. Simsek, Q. H. Liu, and J. Liu, "Fast computation of dyadic Green's function for layered media and its application in interconnect simulations,'' IEEE Antennas and Propagation Society International Symposium and URSI, Abstract, Monterey, CA, June 2004. [Download]