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W. T. Kim

Kim, Won Tae (김원태) 

KAIST, Department of Physics (March 2017~)
M.S. : Ajou University, Division of Energy Systems Research, Physics, 2016
B.S. : Ajou University, Physics, 2014
Research area: Terahertz photonics & Spectroscopy
E-mail : wjaxo77[at]kaist.ac.kr


Publications

Journals
  1. M.-H. Shin, W. T. Kim, S.-I. Kim, S.-J. Kim, I. C. Yu, S.-W. Kim, M. Jazbinsek, W. Yoon, H. Yun, F. Rotermund*, O-P. Kwon*, "Organic broadband THz generators optimized for efficient near-infrared optical pumping," Adv. Sci. 7, 2001738 (2020).
  2. K. Lee, J. Park, B. J. Kang, W. T. Kim, H.-D. Kim, S. Baek, K. J. Ahn, B. Min*, F. Rotermund*, “Electrically controllable terahertz second-harmonic generation in GaAs,” Adv. Opt. Mater. 8, 2000359 (2020).
  3. D. Kim, W. T. Kim, J.-H. Seok, I. C. Yu, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, "Molecular salt crystals with bis(head-to-tail) interionic complementary assembly for efficient organic THz generators," J. Mater. Chem. C 8, 10078 (2020).  
  4. K. Lee, S. C. Lee, W. T. Kim, J. Park, B. Min, F. Rotermund, “Terahertz generation from resonant photo-conductive antenna,” Curr. Opt. Photon. 4, 373 (2020). (editor's pick) 
  5. D. Kim, W. T. Kim, J.H. Han, J.-A. Lee, S.-H. Lee, B. J. Kang, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, S. van Bezouw, J. Campo, W. Wenseleers, F. Rotermund*, O-P. Kwon*, “Wide-bandgap organic crystals: Enhanced optical-to-terahertz nonlinear frequency conversion at near-infrared pumping,” Adv. Opt. Mater. 8, 1902099 (2020).
  6. J.-A. LeeW. T. Kim, M. Jazbinsek, D. Kim, S.-H. Lee, I. C. Yu, W. Yoon, H. Yun, F. Rotermund*, O-P. Kwon*, “X-shaped alignment of chromophores: Potential alternative for efficient organic terahertz generators,” Adv. Opt. Mater. 8, 1901921 (2020). (inside front cover)
  7. S.-I. KimW. T. Kim, J. H. Seok, M. Jazbinsek, W. Yoon, I. C. Yu, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, “Organic s-hole containing organic crystals with enhanced nonlinear optical response and efficient optical-to-THz frequency conversion,” Adv. Opt. Mater. 8, 1901840 (2020). 
  8. M.-H. Shin+, W. T. Kim+, S.-I. Kim, S.-H. Lee, I. C. Yu, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, “Efficient gap-free broadband terahertz generators based on new organic Quinolinium single crystals,” Adv. Opt. Mater. 7, 1900953 (2019). (journal cover) 
  9. K. Lee, J. Park, J. Son, B. J. Kang, W. T. Kim, S. C. Lee, B. Min*, F. Rotermund*, “Electrical control of terahertz frequency conversion from time-varying surfaces,” Opt. Express 27, 12762 (2019).
  10. S. Lee+, W. T. Kim+, J.-H. Kang, B. J. Kang, F. Rotermund*, Q-H. Park*, “Single-layered metasurfaces as spectrally tunable terahertz half- and quarter-waveplates," ACS Appl. Mater. Interfaces 11, 7655 (2019). 
  11. S.-I. Kim+, B. J. Kang+, C.-U. Jeong, M.-H. Shin, W. T. Kim, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, “Fluorinated electro-optic crystals for THz wave generation,” Adv. Opt. Mater. 7, 1801495 (2019). (journal cover)
  12. C.-U. Jeong+, B. J. Kang+, S.-H. Lee, S.-C. Lee, W. T. Kim, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, “Yellow-colored electro-optic crystals as intense terahertz wave sources,” Adv. Funct. Mater. 28, 1801143 (2018). (journal cover)
  13. J.-H. Kang, S.-J. Lee, B. J. Kang, W. T. Kim, F. Rotermund, Q-H. Park, "Anomalous wavelength scaling of tightly coupled terahertz metasurfaces," ACS Appl. Mater. Interfaces 10, 19331 (2018).
  14. J. W. Kim, S. Y. ChoiW. T. Kim, B. J. Kang, W. B. Cho, G.-H. Kim, F. Rotermund, "550-MHz carbon nanotube mode-locked femtosecond Cr:YAG laser," Chin. Opt. Lett. 16, 061404 (2018). (highlights & cover story)
  15. B. J. Kang, S.-H. Lee, W. T. Kim, S.-C. Lee, K. Lee,  G. Benacchio, G. Montemezzani, M. Jazbinsek*, O-P. Kwon*, F. Rotermund*, "New class of efficient terahertz generators: Effective terahertz spectral filling by complementary tandem configuration of nonlinear organic crystals," Adv. Funct. Mater. 28, 1707195 (2018). (inside front cover)
  16. S.-C. Lee+, B. J. Kang+, M.-J. Koo, S.-H. Lee, J.-H. Han, J.-Y. Choi, W. T. Kim, M. Jazbinsek, H. Yun, D. Kim, F. Rotermund*, O-P. Kwon*, “New electro-optic salt crystals for efficient terahertz wave generation by direct pumping at Ti:sapphire wavelength,” Adv. Opt. Mater. 5, 1600758 (2017). (frontispiece)
  17. T. K. Nguyen, W. T. Kim, B. J. Kang, H. S. Bark, K. Kim, J. Lee, I. Park, T.-I. Jeon, F. Rotermund, "Photoconductive dipole antennas for efficient terahertz receiver," Opt. Commun. 383, 50 (2017).
  18. K. Miyamoto+B. J. Kang+, W. T. Kim, Y. Sasaki, H. Niinomi, F. Rotermund*, T. Omatsu*, “Highly intense monocycle terahertz vortex generation by utilizing a Tsurupica spiral phase plate," Sci. Rep. 6, 38880 (2016).
  19. S. Han, J.-Y. Kim, T. Kang, Y.-M. Bahk, J. Rhie, B. J. Kang, Y. S. Kim, J. Park, W. T. Kim, Hyeongtag Jeon, F. Rotermund, D.-S. Kim, "Colossal Terahertz Nonlinearity in Angstrom- and Nanometer-Sized Gaps," ACS Photonics 3, 1440 (2016).
  20. J.-Y. Kim, B. J. Kang, Y.-M. Bahk, Y. S. Kim, J. Park, W. T. Kim, J. Rhie, S. Han, H. Jeon, C.-H. Park, F. Rotermund, D.-S. Kim, "Tunnelling current-voltage characteristics of Angstrom gaps measured with terahertz time-domain spectroscopy," Sci. Rep. 6, 29103 (2016).
  21. B.  J. Kang+, I. H. Baek+, S.-H. Lee, W. T. Kim, S.-J. Lee, Y. U. Jeong, O-P. Kwon, F. Rotermund, “Highly nonlinear organic crystal OHQ-T for efficient ultra-broadband terahertz wave generation beyond 10 THz,” Opt. Express 24, 11054 (2016).
  22. J.-Y. Kim+, B. J. Kang+, J. Park, Y.-M. Bahk, W. T. Kim, J. Rhie, H. Jeon, F. Rotermund, D.-S. Kim, “Terahertz quantum plasmonics of nanoslot antennas in nonlinear regime,” Nano Lett. 15, 6683 (2015)
  23. Y.-M. Bahk+, B. J. Kang+, Y. S. Kim, J.-Y. Kim, W. T. Kim, T. Y. Kim, T. Kang, J. Rhie, S. Han, C.-H. Park, F. Rotermund*, D.-S. Kim*, “Electromagnetic saturation of angstrom-sized quantum barriers at terahertz frequencies,” Phys. Rev. Lett. 115, 125501 (2015). (Editor's suggestion & Cover)

International Conferences
  1. W. T. Kim, M.-H. Shin, S.-I. Kim, S.-H. Lee, I. C. Yu, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, O.-P. Kwon, F. Rotermund, "New design strategy of organic nonlinear crystals via suppression of phonon vibrational modes for gap-free broadband THz generation," SPIE Photonics West (2020), San Francisco, USA.
  2. W. T. Kim, D. Kim, J.-H. Han, J.-A. Lee, S.-H. Lee, B. J. Kang, M. Jazbinsek, W. Yoon, H. Yun, D. Kim, S. Bezouw, J. Campo, W. Wenseleers, O.-P. Kwon, F. Rotermund, "Refractive index engineering of nonlinear organic crystals for efficient Optical-to-THz Conversion," The 11th International Conference on Advanced Materials and Devices (ICAMD) (2019), Jeju, Korea.
  3. W. T. Kim, S. Lee, J.-H. Kang, B. J. Kang, Q.-H. Park, F. Rotermund, "Spectrally tunable terahertz half- and quarter-waveplates based on single-layered metasurface," The 5th International Symposium on Microwave/Terahertz Science and Applications (MTSA) (2019), Busan, Korea.
  4. W. T. Kim, S. Lee, J.-H. Kang, B. J. Kang, Q.-H. Park, F. Rotermund, "Single-layered metasurfaces as spectrally tunable terahertz half- and quarter-waveplates," Conference on Lasers & Electro-Optics/Europe (CLEO/ Europe) (2019), Munich, Germany.
  5. W. T. Kim, S.-J. Lee, B. J. Kang, M.-H. Shin, O.-P. Kwon, F. Rotermund, "Optical characteristics of nonlinear organic crystal OHQ-CBS and its application for efficient Optical-to-THz conversion," Asia Pacific Laser Symposium (APLS) (2018), Xian, China.
  6. W. T. Kim, N. T. Khang, B. J. Kang, H. S. Park, K. H. Kim, J. J. Lee, I. M. Park, T. I. Jeon, F. Rotermund, "Various photoconductive antennas for efficient terahertz detection," The 11th Conference on Laser and Electro-Optic Pacific Rim (CLEO PR) (2015), Busan, Korea.

         Domestic Conferences
  1. W. T. Kim, J. H. Park, A. Tsukamoto, K.-J. Kim, F. Rotermund, "Spin dynamics in ferromagnetic materials by THz emission spectroscopy," Optical Society of Korea (OSK) Summer Meeting (2020), Busan, Korea.
  2. W. T. Kim, D. Kim, B. J. Kang, J.-H. Han, J.-A. Lee, S.-H Lee, O.-P Kwon, F. Rotermund,  "Phase matching engineering of nonlinear organic crystals for efficient THz wave generation," 18th Advanced Lasers and Their Applications (ALTA) (2019), Jeju, Korea. (최우수발표상)
  3. W. T. Kim, S.-J. Lee, B. J. Kang, M.-H. Shin, O.-P Kwon, F. Rotermund, "Optical characteristics of nonlinear organic crystal OHQ-CBS and its application for efficient Optical-to-THz conversion," Optical Society of Korea (OSK) Winter Meeting (2019), Hoengseong, Korea. 
  4. W. T. Kim, B. J. Kang, N. T. Khang, H. S. Park, K. H. Kim, J. J. Lee, I. M. Park, T. I. Jeon, F. Rotermund, "Study on photoconductive antenna structures for efficient THz pulse detection," Korean Physical Society (KPS) Spring Meeting (2017), Deajeon, Korea. (최우수발표상)
  5. W. T. Kim, B. J. Kang, S.-H. Lee, O.-P. Kwon, F. Rotermund, "Tandem configuration of nonlinear organic crystals for plugging self-absorption gap in THz regime," Korean Physical Society (KPS) Spring Meeting (2016), Deajeon, Korea.
  6. W. T. Kim, N. T. Khang, B. J. Kang, H. S. Park, K. H. Kim, J. J. Lee, I. M. Park, T. I. Jeon, F. Rotermund, "THz generation and detection characteristics depending on photoconductive antenna structures," Optical Society of Korea (OSK) Winter Meeting (2015), Deajeon, Korea.
  7. W. T. Kim, B. J. Kang, S. S. Shin, K. J. Ahn, Y. C. Joo, F. Rotermund, "THz electron dynamics in dye-sensitized perovskite BaSnO3," Optical Society of Korea (OSK) Summer Meeting (2014), Jeju, Korea.
  8. W. T. Kim, N. T. Khang, B. J. Kang, J. J. Lee, I. M. Park, F. Rotermund, "Studies on novel antenna structures for efficient THz wave generation," 13th Advanced Lasers and Their Applications (ALTA) (2014), Jeju, Korea.
Subpages (1): Staffs @ Ajou Univ.