Publications

52. Hyeongwoo Lee, Sujeong Kim, Seonhye Eom, Gangseon Ji, Soo Ho Choi, Huitae Joo, Jinhyuk Bae, Ki Kang Kim, Vasily Kravtsov, Hyeong-Ryeol Park & Kyoung-Duck Park*. "Quantum tunneling high-speed nano-excitonic modulator". Nature Communications, 15(1), 8725 (2024).

51. Hyosim Yang†, Gangseon Ji†, Min Choi, Seondo Park, Hyeonjun An, Hyoung-Taek Lee, Joonwoo Jeong, Yun Daniel Park, Kyungwan Kim, Noejung Park, Jeeyoon Jeong*, Dai-Sik Kim*, Hyeong-Ryeol Park*, "Suppressed terahertz dynamics of water confined in nanometer gaps", Science Advances 10, eadm7315 (2024).

50. Jihwan Jeong, Baekjune Kang, Jeongkuen Song, Sangmin Lee, Choong H. Kim, Uksam Choi, Eun Kyo Ko, Jong Hwa Lee, Hyoung-Taek Lee, Hyeong-Ryeol Park, Ji Hye Lee, Miyoung Kim, Tae Won Noh, Changhee Sohn, "Transparent Conducting Oxides SrNbO3 Thin Film with Record High Figure of Merit", Journal of the European Ceramic Society 44, 6764-6770 (2024).

49. Pradip Adhikari, Anuradha Wijesinghe, Anjali Rathore, Timothy Jinsoo Yoo, Gyehyeon Kim, Sinchul Yeom, Hyoung-Taek Lee,  Alessandro R. Mazza, Changhee Sohn, Hyeong-Ryeol Park, Mina Yoon, Matthew Brahlek, Honggyu Kim, and Joon Sue Lee*, “Structural anisotropy in Sb thin films”, APL Materials 12, 011116 (2024).

48. Hyoung-Taek Lee, Jeonghoon Kim, Joon Sue Lee, Mina Yoon, Hyeong-Ryeol Park*, "More than 30,000-fold field enhancement of terahertz nanoresonators enabled by rapid inverse design", Nano Letters 23(24), 11685-11692 (2023).

47. Young-Mi Bahk, Kyoung-Ho Kim, Kwang Jun Ahn*, Hyeong-Ryeol Park*, "Recent Developments in Terahertz Nanosensors", Advanced Photonics Research 5(1), 2300211 (2023).

46. Hyoung-Taek Lee†, Jeonghoon Kim†, and Hyeong-Ryeol Park*, "Rapid inverse design of high Q-factor terahertz filters [Invited]", Optical Materials Express 13(11), 3384-3393 (2023).

45. Gangseon Ji, Hwan Sik Kim, Seong Ho Cha, Hyoung-Taek Lee, Hye Ju Kim, Sang Woon Lee, Kwang Jun Ahn, Kyoung-Ho Kim*, Yeong Hwan Ahn*, Hyeong-Ryeol Park*, "Terahertz virus-sized gold nanogap sensor", Nanophotonics 12(1), 147-154 (2023).

44. Zhihao Wang, Yingde Zhang, Cheng Chen, Hong-Guang Piao*, Linjie Ding*, Liqing Pan, Jiaohong Huang, Hyeong-Ryoel Park, Dai-Sik Kim, Seong-ChoYu*, "Magnetocaloric properties and critical behavior of magnetic phase transition in La(Fe0.94-xNixCo0.06)11.4Si1.6B0.25 alloys", Journal of Magnetism and Magnetic Materials, 565, 170147 (2023)

43. Yeonsoo Lim, In Cheol Seo, Soo-Chan An, Younggon Kim, Chaejin Park, Byung Hoon Woo, Seongheon Kim, Hyeong-Ryeol Park, Young Chul Jun*, "Maximally Chiral Emission via Chiral Quasibound States in the Continuum", Laser Photonics Rev 17(2),2200611 (2022)

42. Young-Mi Bahk, Kyoung-Ho Kim, Gangseon Ji,Kwang Jun Ahn, Dai-Sik Kim, Hyeong-Ryeol Park*,"Detection of Single Nanoparticles inside a Single Terahertz Resonator", Advanced Photonics Research 3(11), 2200134 (2022).

41. Jeeyoon Jeong*, Dai-Sik Kim, Hyeong-Ryeol Park*,"Beyond-hot-spot absorption enhancement on top of terahertz nanotrenches", Nanophotonics 11(13), 3159-3167 (2022).

40. Hyeongwoo Lee†, Yeonjeong Koo†, Jinseong Choi, Shailabh Kumar, Hyoung-Taek Lee, Gangseon Ji, Soo Ho Choi, Mingu Kang, Ki Kang Kim, Hyeong-Ryeol Park, Hyuck Choo, Kyoung-Duck Park*,"Drift-dominant exciton funneling and trion conversion in 2D semiconductors on the nanogap", Science Advances 8(5), eabm5236 (2022).

39. Choongwon Seo, Jeonghoon Kim, Seonhye Eom, Kyungwan Kim*, Hyeong-Ryeol Park*,"Terahertz spectroscopy of high temperature superconductors and their photonic applications", J. Korean Phys. Soc., 81, 490-501 (2022).

38. T.L. Phan, T.V. Manh, H.R. Park, B.W. Lee, S.C. Yu, H. Yang, C. Li, H.-G. Piao, Y.D. Zhang, D.H. Manh, N.T. Dang,"Magnetocaloric effect in Ba-doped LaCoO3 cobaltites showing second-order phase transitions", Journal of Magnetism and Magnetic Materials 539, 168378 (2021).

37. Dukhyung Lee*, Dasom Kim, Dai-Sik Kim, Hyeong-Ryeol Park, Changhee Sohn, Seon Namgung, Kunook Chung, Young Chul Jun, Dong Kyun Kim, Hyuck Choo & Young-Geun Roh, "High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide", Scientific Reports 11, 15863 (2021) .

36. Hyoung-Taek Lee, Gangseon Ji, Jun-Yung Oh, Choongwon Seo, Byeongwon Kang, Kyungwan Kim and Hyeong-Ryeol Park*, "Measuring Complex Refractive Indices of a Nanometer-Thick Superconducting Film Using Terahertz Time-Domain Spectroscopy with a 10 Femtoseconds Pulse Laser", Crystals 11(6), 651 (2021).

35. Ying De Zhang, Tien Van Manh, The Long Phan, Hyeong-Ryeol Park, Seong-Cho YU*,"Assessment of the Magnetocaloric Effect upon the Magnetic Entropy Change", New Phys.: Sae Mulli 71, 316 (2021).

34. K.P. Shinde, V.M. Tien, H. Lin, H.-R. Park, S.-C. Yu, K.C. Chung, D.-H. Kim, "Magnetocaloric effect in Tb2O3 and Dy2O3 nanoparticles at cryogenic temperatures", Journal of Applied Physics 127, 054903 (2020).

33. K.P. Shinde, W.Z. Nan, M.V. Tien, H. Lin, H.-R. Park, S.-C. Yu, K.C. Chung, D.-H. Kim, "Magnetocaloric effect in rare earth Ho2O3 nanoparticles at cryogenic temperature", Journal of Magnetism and Magnetic Materials 500, 166391 (2020).

32. Minah Seo*, and Hyeong-Ryeol Park*, "Terahertz Biochemical Molecule‐Specific Sensors", Advanced Optical Materials 8(3), 1900662 (2020). *Inside front cover paper

31. Jeong Seop Lee, Yun Ahn, Jungwoo Kim, Jongwoo Kim, Sang Hwan Nam, Seong-Cho Yu, Hyeon Ho Shin, Taeyoung Jung, Eun-Ah Kim, Yung Doug Suh*, Hyun Woo Kim*, Hyeong-Ryeol Park*, "Chemical analysis of air pollutant particulate matters based on surface enhanced Raman spectroscopy", Proc. of SPIE 11082, 110822A (2019).

30. Gangseon Ji†, Woongkyu Park†, Hyoung-Taek Lee, Chang-Yun Song, Choongwon Seo, Minjo Park, Byeongwon Kang, Kyungwan Kim, Dai-Sik Kim, and Hyeong-Ryeol Park*, "Terahertz time domain spectroscopy of GdBCO superconducting thin films", Progress in Superconductivity and Cryogenics 21(1), 15 (2019).

29. Young-Mi Bahk*, Dai-Sik Kim*, and Hyeong-Ryeol Park*, “Large area metal gaps and their optical applications”, Advanced Optical Materials 7, 1800426 (2019).

28. Hyoung-Taek Lee, In-Hee Lee, Hyeong-Ryeol Park*, “Dependences of the Optical and the Electrical Properties of 50 nm Thick Copper Films Deposited by Using an Electron Beam Evaporator on the Evaporator's Vacuum Conditions”, New Phys.: Sae Mulli 68, 781 (2018).

27. Sae Hwan Chun, Kwang Woo Shin, Hyung Joon Kim, Seonghoon Jung, Jaehun Park, Young-Mi Bahk, Hyeong-Ryeol Park, Jisoo Kyoung, Da-Hye Choi, Dai-Sik Kim, Gun-Sik Park, J. F. Mitchell, and Kee Hoon Kim, “Electromagnon with Sensitive Terahertz Magnetochromism in a Room-Temperature Magnetoelectric Hexaferrite”, Phys. Rev. Lett. 120, 027202 (2018).

26. Jeeyoon Jeong, Dasom Kim, Hyeong-Ryeol Park, Taehee Kang, Dukhyung Lee, Sunghwan Kim, Young-Mi Bahk, and Dai-Sik Kim, “Anomalous extinction in index-matched terahertz nanogaps”, Nanophotonics 7(1), 347 (2018).

25. Kriti Agarwal, Chao Liu, Daeha Joung, Hyeong-Ryeol Park, Jeeyoon Jeong, Dai-Sik Kim, and Jeong-Hyun Cho, “Three-Dimensionally Coupled THz Octagrams as Isotropic Metamaterials”, ACS Photonics 4(10), 2436 (2017).

24. Kriti Agarwal, Chao Liu, Daeha Joung, Hyeong-Ryeol Park, Sang-Hyun Oh, and Jeong-Hyun Cho, “Three-Dimensional Anisotropic Metamaterials as Triaxial Optical Inclinometers”, Scientific Reports 7, 2680 (2017).

23. Daeha Joung, Kriti Agarwal, Hyeong-Ryeol Park, Chao Liu, Sang-Hyun Oh, Jeong-Hyun Cho, “Self-Assembled Multifunctional 3D Microdevices”, Advanced Electronic Materials 2(6), 1500459 (2016).

22. Hyeong-Ryeol Park*, Xiaoshu Chen*, Ngoc Cuong Nguyen*, Jaime Peraire, and Sang-Hyun Oh, “Nanogap-enhanced terahertz sensing of 1 nm thick (λ/10^6) dielectric Films”, ACS Photonics 2(3), 417 (2015). *equal contribution

21. Hyeong-Ryeol Park, Seon Namgung, Xiaoshu Chen, Nathan C. Lindquist, and Sang-Hyun Oh, “High-density metallic nanogap arrays for sensitive detection of single-walled carbon nanotube thin films”, Faraday Discussions 178, 195 (2015).

20. Hyeong-Ryeol Park, Seon Namgung, Xiaoshu Chen, Nathan C. Lindquist, Vincenzo Giannini, Yan Francescato, Stefan A. Maier, and Sang-Hyun Oh, “Perfect extinction of terahertz waves in monolayer graphene over 2-nm-wide metallic apertures”, Advanced Optical Materials 3(5), 667 (2015). *Back cover paper. *Selected for the Best of Advanced Optical Materials - 2015 edition.

19. Xiaoshu Chen*, Hyeong-Ryeol Park*, Nathan C. Lindquist, Jonah Shaver, Matthew Pelton, Sang-Hyun Oh, “Squeezing Millimeter Waves through a Single, Nanometer-wide, Centimeter-long Slit”, Scientific Reports 4, 6722 (2014). *equal contribution

18. Xiaoshu Chen*, Hyeong-Ryeol Park*, Matthew Pelton, Xianji Piao, Nathan C. Lindquist, Hyungsoon Im, Yun Jung Kim, Jae Sung Ahn, Kwang Jun Ahn, Namkyoo Park, Dai-Sik Kim, Sang-Hyun Oh, “Atomic layer lithography of wafer-scale nanogap arrays for extreme confinement of electromagnetic waves”, Nature Communications 4, 2361 (2013). *equal contribution, *featured image for Nature Communications.

17. Hyeong-Ryeol Park, Kwang Jun Ahn, Sanghoon Han, Young-Mi Bahk, Namkyoo Park, and Dai-Sik Kim, “Colossal absorption of molecules inside single terahertz nanoantennas”, Nano Letters 13(4), 1782 (2013).

16. Young-Mi Bahk, Jae-Wook Choi, Jisoo Kyoung, Hyeong-Ryeol Park, Kwang Jun Ahn, and Dai-Sik Kim, “Selective enhanced resonances of two asymmetric terahertz nano resonators”, Optics Express 20(23), 25644 (2012).

15. Hyeong-Ryeol Park, Young-Mi Bahk, Jong Ho Choe, Sanghoon Han, Seong Soo Choi, Kwang Jun Ahn, Namkyoo Park, Q-Han Park, and Dai-Sik Kim, “Terahertz pinch harmonics enabled by single nano rods”, Optics Express 19(24), 24775 (2011); The Virtual Journal for Biomedical Optics 7(1) (2012) Topic: Nanotechnology.

14. Young-Gyun Jeong, Hannes Bernien, Ji-Soo Kyoung, Hyeong-Ryeol Park, Hyun‑Sun Kim, Jae-Wook Choi, Bong-Jun Kim, Hyun-Tak Kim, Kwang Jun Ahn, and Dai-Sik Kim, “Electrical control of terahertz nano antennas on VO2 thin film”, Optics Express 19, 21211 (2011).

13. Hyeong-Ryeol Park, Young-Mi Bahk, Kwang Jun Ahn, Q-Han Park, Dai-Sik Kim, Luis Martín-Moreno, Francisco J García-Vidal, and Jorge Bravo Abad, “Controlling terahertz radiation with nanoscale metal barriers embedded in nano slot antennas”, ACS Nano 5, 8340 (2011).

12. Jisoo Kyoung, Eui Yun Jang, Marcio D. Lima, Hyeong-Ryeol Park, Raquel Ovalle Robles, Xavier Lepro, Yong Hyup Kim, Ray H. Baughman and Dai-Sik Kim, “A reel-wound carbon nanotube polarizer for terahertz frequencies”, Nano Letters 11, 4227 (2011).

11. S. B. Choi, J. S. Kyoung, H. S. Kim, H. R. Park, Bong-Jun Kim, Y. H. Ahn, F. Rotermund, Hyun-Tak Kim, K. J. Ahn and D. S. Kim, “Nanopattern enabled terahertz all-optical switching on vanadium dioxide thin film”, Applied Physics Letters 98, 071105 (2011).

10. Y. M. Bahk, H. R. Park, K. J. Ahn, H. S. Kim, Y. H. Ahn, Dai-Sik Kim, J. Bravo-Abad, L. Martin-Moreno, and F. J. Garcia-Vidal, “Anomalous Band Formation in Arrays of Terahertz Nanoresonators”, Physical Review Letters 106, 013902 (2011).

9. J. S. Kyoung, M. A. Seo, S. M. Koo, H. R. Park, H. S. Kim, B. J. Kim, H. T. Kim, N. K. Park, D. S. Kim, and K. J. Ahn, “Active terahertz metamaterials: Nano-slot antennas on VO2 thin films”, Physica Status Solidi (c) 8, 1227 (2011).

8. J. S. Kyoung, M. A. Seo, H. R. Park, K. J. Ahn and D. S. Kim, “Far field detection of terahertz near field enhancement of sub-wavelength slits using Kirchhoff integral formalism”, Optics communications 283, 4907 (2010).

7. Jisoo Kyoung, Minah Seo, Hyeongryeol Park, Sukmo Koo, Hyun-sun Kim, Youngmi Park, Bong-Jun Kim, Kwangjun Ahn, Namkyoo Park, Hyun-Tak Kim, and Dai-Sik Kim, “Giant nonlinear response of terahertz nanoresonators on VO2 thin film”, Optics Express 18, 16452 (2010).

6. Minah Seo, Jisoo Kyoung, Hyeongryeol Park, Sukmo Koo, Hyun-sun Kim, Hannes Bernien, Bong Jun Kim, Jong Ho Choe, Yeong Hwan Ahn, Hyun-Tak Kim, Namkyoo Park, Q-Han Park, Kwangjun Ahn and Dai-sik Kim, “Active Terahertz Nanoantennas Based on VO2 Phase Transition”, Nano Letters 10, 2064 (2010).

5. H. R. Park, S. M. Koo, O. K. Suwal, Y. M. Park, J. S. Kyoung, M. A. Seo, S. S. Choi, N. K. Park, D. S. Kim, and K. J. Ahn, “Resonance behavior of single ultrathin slot antennas on finite dielectric substrates in terahertz regime”, Applied Physics Letters 96, 211109 (2010).

4. H. R. Park, Y. M. Park, H. S. Kim, J. S. Kyoung, M. A. Seo, D. J. Park, Y. H. Ahn, K. J. Ahn, and D. S. Kim, “Terahertz Nano-Resonators: Giant Field Enhancement and Ultrabroadband Performance”, Applied Physics Letters 96, 121106 (2010).

3. M. A. Seo, H. R. Park, D. J. Park, Dai Sik Kim, A. J. L. Adam, and P. C. M. Planken, “Focusing of terahertz waves onto micron-sized slits grown on ZnTe and GaP”, Journal of Korean Physics Society 55, 267 (2009).

2. D. S. Kim, M. A. Seo, H. R. Park, J. S. Kyoung, J. W. Lee, O. K. Suwal, and S. S. Choi, “Electromagnetic wave funneling through nano-gaps and nano-antennas”, Proc. SPIE 7214, 72140H (2009). *invited paper

1. M. A. Seo, H. R. Park, S. M. Koo, D. J. Park, J. H. Kang, O. K. Suwal, S. S. Choi, P. C. M. Planken, G. S. Park, N. K. Park, Q. H. Park, and D. S. Kim, “Terahertz field enhancement by a metallic nano slit operating beyond the skin-depth limit”, Nature Photonics 3, 152 (2009).