Domestic Conferences

 JournalsInternational conferences / Domestic conferences / Patents

  1. [invited] H. Choi, “Ultra optical study of exciton dynamics in atomically thin 2D materials” 제 16회 첨단 레이저 및 레이저 응용 워크샵 (ALTA 2017), Jeju, Korea, May 2017.
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  2. [invited] H. Choi, “Terahertz investigation of Dirac plasmons in topological insulator Bi2Se3 metamaterials” 첨단 레이저 및 초고속 방사선 워크샵, Gwangju, Korea, November 2016.
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  3. [invited] H. Choi, “Ultrafast time-resolved exciton dynamics in 2D materials” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  4. S. Park, J. Kim, H. Jang, Nikesh Koirala, J. Lee, U. Kim, Y. Roh, H. Lee, S. Sim, S. Cha, C. In, J. Park, J. Lee, J. Moon, Salehi Maryam, J. Sung, M. Jo, S. Oh, J. Ahn, S. Hwang , D. Kim, H. Choi, “Gate-tunable infrared photodetectors based on a graphene-Bi2Se3 heterostructure with high responsivity at room temperature,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  5. S. Sim, D. Lee, M. Noh, S. Cha, C. Soh, J. Sung, M. Jo, H. Choi, “Selectively tunable anisotropic Optical Stark effect of excitons in ReS2,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  6. S. Sim, J. Park, Koirala Nikesh, S. Lee, Brahlek Matthew, J. Moon, Salehi Maryam, J. Kim, S. Cha, J. Sung , M. Jo, S. Oh, H. Choi, “Ultrafast control of plasmon-phonon interaction using topological phase transition in (Bi1-xlnx)2Se3,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  7. S. Lee, B. Kho, J. Park, H. Kim, J. Lee, S. Cha, S. Park, H. Shin, J. Kim, H. Choi, “Gate controlled Photothermoelectric Effect in Topological insulator,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  8. C. In, S. Sim, J. Park, J. Kim, S. Park, Koirala Nikesh, Brahlek Matthew, J. Moon, Salehi Maryam, S. Oh, H. Choi, “Fano coupling of Dirac surface plasmon and phonon in topological insulator Bi2Se3 microslits,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  9. J. Lee, S. Cho, S. Lee, D. Lee, B. Kim, M. Noh, H. Bae, H. Choi, “Fast 2D material layer-number counting based on quantum contrast estimation of optical image,” 2016 KPS Fall Meeting, Gwangju, Korea, October 2016.
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  10. S. Sim, J. Park, Nikesh Koirala, S. Lee, Mattew Brahlek, J. Moon, Maryam Salehi, J. Kim, S. Cha, J. Sung, M. Jo, S. Oh, H. Choi, “Ultrafast control of plasmon-phonon interaction using topological phase transition in (Bi1-xlnx)2Se3,” 한국 광학회 하계 학술발표회, Busan, Korea, July 2016.
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  11. C. In, S. Sim, J. Park, J. Kim, S. Park, Nikesh Koirala, Mettew Brahlek, J. Moon, Maryam Salehi, S. Oh, H. Choi, “Observation of plasmon-phonon Fano interference in topological insulator Bi2Se3 microslits,” 한국 광학회 하계 학술발표회, Busan, Korea, July 2016.
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  12. D. Lee, S. Sim, S. Cha, C. So, J. Sung, M. Jo, H. Choi, “Selectively controllable optical Stark effect of anisotropic excitions in bilayer ReS2,” 한국 광학회 하계 학술발표회, Busan, Korea, July 2016.
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  13. [invited] H. Choi, “Ultrafast terahertz carrier dynamics in two-dimensional materials,” 13 첨단 레이저 레이저 응용 워크샵, Jeju, Korea, May 2014.
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  14. [invited] H. Choi, “Ultrafast Terahertz Nonlinear Optics in Graphene-Metamaterial Devices,” OSK Annual Winter Meeting 2014, Daejeoun, Korea, Feb 2014.
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  15. S. Sim, M. Brahlek, N. Koirala, S. Cha, S. Oh, and H. Choi, “Ultrafast terahertz probes of hot-carrier relaxation in topological insulator Bi2Se3,” 1 한국 그래핀 심포지엄, Buyeo, Korea, April 2014.
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  16. S. Cha, S. C. Lim, S. J. Chae, Y. H. Lee, and H. Choi, “Observation of the negative dynamic conductivity in grapheme induced by terahertz grain-boundary plasmon,” 1 한국 그래핀 심포지엄, Buyeo, Korea, April 2014.
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  17. C. In, H. Kim, B. Min, H. Choi, “Ultrafast Second-Order Nonlinear Optics in a Graphene-Metamaterial Device: Terahertz Difference-Frequency Generation,” 1 한국 그래핀 심포지엄, Buyeo, Korea, April 2014.
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  18. S. Sim, J. Park, J.-G. Song, C. In, Y.-S Lee, H. Kim, H. Choi, “Ultrafast Exciton Dynamics in Atomically Thin MoS2, 1 한국 그래핀 심포지엄, Buyeo, Korea, April 2014.
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  19. J. Kim, J. Oh, C. In, Y.-S Lee, T. B. Norris, S. C. Jun, and H. Choi, “Observation of Rapid Carrier Relaxation in Graphene Oxide Probed by Ultrafast Terahertz Spectroscopy,” 1 한국 그래핀 심포지엄, Buyeo, Korea, April 2014.
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  20. S. Sim, B. Brahlek, S. Cha, S. Oh, and H. Choi, “Ultrafast terahertz spectroscopy of surface-scattering dynamics in topological insulator Bi2Se3 thin film,” Photonics Conference 2013, Jeju, Korea, Nov 2013.
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  21. J. Kim, J. Oh, C. In, Y. -S Lee, S. C. Jun, and H. Choi, “Observation of rapid carrier relaxation in graphene oxide using ultrafast terahertz spectroscopy,” Photonics Conference 2013, Jeju, Korea, Nov 2013.
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  22. C. In, J. Seo, J. Choi, S. Sim, T. Lee, and H. Choi, “Optical-pump terahertz-probe spectroscopy of carrier dynamics in individual silicon nanowires,” Photonics Conference 2013, Jeju, Korea, Nov 2013.
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  23. J. Choi, S. Lee, H.-D. Kim, B. Min, and H. Choi, “Ultrafast terahertz Dirac fermion dynamics of gate-controlled graphene-metamaterial hybrid devices,” Photonics Conference 2012, PyeongChang, Korea, Dec 2012.
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  24. J. Kim, I. Maeng, Y. Choi, S. C. Lim, Y. H. Lee, and H. Choi, “Ultrafast terahertz and infrared spectroscopy of hot Dirac fermions dynamics in single-layer graphene,” Photonics Conference 2012, PyeongChang, Korea, Dec 2012.
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  25. J. Kim, I. Maeng, J. Jung, H. Song, J. -H. Son, K. Kim, J. Lee, C. –H. Kim, G. Chae, M. Jun, Y. Hwang, S. J. Lee, J. –M. Myoung, and H. Choi, “Non-Drude conductivity in transparent silver nanowire thin films using terahertz time-domain spectroscopy,” Photonics Conference 2012, PyeongChang, Korea, Dec 2012.
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  26. S. Cha, I. Maeng, S. J. Oh, K. Jeong, J. –S. Suh, Y. –M. Huh, and H. Choi, “Ultrafast photo-induced charge dynamics of conducting polymer,” Photonics Conference 2012, PyeongChang, Korea, Dec 2012.
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  27. S. Sim, S. Lim, Y. -H. Lee, and H. Choi, “Direct observation of the ultrafast exciton-exciton annihilation kinetics in single-walled carbon nanotubes,” Photonics Conference 2012, PyeongChang, Korea, Dec 2012.
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  28. K.-H. Lee, H. Choi, and W.Y. Choi, “Fiber-dispersion induced nonlinear distortion of directly modulated DFB LD,” Photonics Conference 2002, Hanwha Resort, Sorak mountain, Korea, Nov 2002.
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  29. H. Choi, K.-H. Lee, and W.Y. Choi, “DFB laser diode parameter extraction based on rate-equation model,” Photonics Conference 2002, Hanwha Resort, Sorak mountain, Korea, Nov 2002.
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