Publications

Preprints

28. Ivan Sinev, Felix Ulrich Richter, Ivan Toftul, Nikita Glebov, Kirill Koshelev, Yongsop Hwang, David G. Lancaster, Yuri Kivshar, and Hatice Altug, "Chirality encoding in resonant metasurfaces governed by lattice symmetries," arXiv:2412.20955  [physics.optics]. [arXiv]      

27. T. Toney Fernandez†, Yongsop Hwang†, D. E. Otten, A .Fuerbach, and D. G. Lancaster, "Mid-infrared optical waveguides: missing link of integrated photonics," arXiv:2408.12050 [physics.optics]. [arXiv]

Peer-reviewed journal papers

2025

26. Yongsop Hwang, "Estimation of refractive index profile of a GeO₂-SiO₂ graded-index fiber from the elemental composition," Optics Letters 50 2219 (2025). [link]

2024

25. T. Toney Fernandez, Yongsop Hwang, H. Mahmodi, D. Otten, L. Plenecassagne, S. Cozic, S. Gross, I. Kabakova, M. Withford, M. Poulain, A. Fuerbach, D. Lancaster, "Ultrafast laser-fabricated fluoride glass waveguides with exceptionally high positive refractive index change for mid-infrared integrated optics," Optics Express 32 42938 (2024). [arXiv][link][pdf]

24. [Emerging Leaders 2024] Kirill Koshelev,* Ivan Toftul, Yongsop Hwang, and Yuri Kivshar, "Scattering matrix for chiral harmonic generation and frequency mixing in nonlinear metasurfaces," Journal of Optics 26 5 (2024). [arXiv][link][pdf]

2023

23. Jia Chen, Dapeng Wang,* Guangyuan Si, Rongxin Zhang, Yongsop Hwang, Xinjian Wang, Jiaxin Zheng, Mengzhe Shen, Qian Wang,* and Jiao Lin,* "From volumetric to planar multiplexing: phase-coded metasurface without Bragg effect," Advanced Materials 2304386 (2023). [link][pdf][SI_pdf]

22. Dale E. Otten,* Lachlan Harris, Yongsop Hwang, Dmitrii Y. Stepanov, and David G. Lancaster, "Fiber-coupled multiplexed independent Ho:ZBLAN waveguide chip lasers in a single substrate," Photonics 10 27 (2023). [link][pdf]

2022

21. Taesu Ryu, Moohyuk Kim, Yongsop Hwang, Myung-Ki Kim,* and Jin-Kyu Yang,* "High-efficiency SOI-based metalenses at telecommunication wavelengths," Nanophotonics 11 4697 (2022). [link][pdf][SI_pdf][SI_mp4]

20. Yongsop Hwang,* Nicholas Phillips, Dale E. Otten, Nicolas Riesen, and David G. Lancaster,* "Efficient coupling between single mode fibers and glass chip waveguides via graded refractive index fiber tips," Optics Express 30 12294 (2022). [link][pdf][SI_pdf]

2021

19. Jin-Kyu Yang,* Yongsop Hwang, and Sang Soon Oh,* "Evolution of topological edge modes from honeycomb photonic crystals to triangular-lattice photonic crystals," Physical Review Research 3 L022025 (2021). [link][pdf][SI_pdf]

18.  Yang Liu,  Yongsop Hwang, Guangyuan Si,  Qian Wang, and  Dapeng Wang,* "Spin-to-orbital angular momentum conversion in symmetric dielectric nanorings," Applied Physics Letters 118 161106 (2021). [link][pdf]

2019

17. Yongsop Hwang, and Jin-Kyu Yang,* "Directional coupling of surface plasmon polaritons at complementary split-ring resonators," Scientific Reports 9 7348 (2019). [link][pdf][SI_pdf][bibtex]

16. Xutao Tang, Yongsop Hwang,* Jiao Lin, and Wayne S. T. Rowe,* "Pneumatically tunable microwave split ring resonators," Sensors and Actuator A: Physical 294 37-44 (2019). [link][pdf][bibtex]

15. Dapeng Wang, Yongsop Hwang, Yanmeng Dai, Guangyuan Si, Shibiao Wei, Duk‐Yong Choi, Daniel E. Gómez, Arnan Mitchell, Jiao Lin*, Xiaocong Yuan*, "Broadband high-efficiency chiral splitters and holograms from dielectric nanoarc metasurfaces," Small 15 1900483 (2019).  [link][pdf][SI_pdf][bibtex]

14. Johannes E. Fröch†, Yongsop Hwang†, Sejeong Kim*, Igor Aharonovich, and Milos Toth, "Photonic Nanostructures from Hexagonal Boron Nitride," Advanced Optical Materials 7 1801344 (2019). [link][pdf][SI_pdf][bibtex]

2018

13. Yongsop Hwang, Seojoo Lee, Sejeong Kim, Jiao Lin*, and Xiao-Cong Yuan*, "Effects of Fano resonance on optical chirality of planar plasmonic nanodevices," ACS Photonics 5 4538-4544 (2018). [link][pdf][SI_pdf][bibtex]

12. Yongsop Hwang, Timothy J. Davis, Jiao Lin*, and Xiao-Cong Yuan*, "Plasmonic circuit for second-order spatial differentiation at the subwavelength scale," Optics Express 26 7368-7375 (2018). [link][pdf][bibtex]

11. Daniel Peter Langley, Eugeniu Balaur*, Yongsop Hwang, Catherine Sadatnajafi, and Brian Abbey*, "Optical chemical barcoding based on polarization controlled plasmonic nanopixels," Advanced Functional Materials 28 1704842 (2018). [link][pdf][SI_pdf][bibtex]

2017

10. Yongsop Hwang, Ben Hopkins*, Dapeng Wang, Arnan Mitchell, Timothy J. Davis, Jiao Lin, and Xiao-Cong Yuan*, "Optical chirality from dark-field illumination of planar plasmonic nanostructures," Laser & Photonics Reviews 11 1700216 (2017). [link][pdf][SI_pdf][bibtex]

9. Daniel E. Gómez*, Yongsop Hwang, Jiao Lin, Timothy J. Davis, and Ann Roberts, "Plasmonic edge states: an electrostatic eigenmode description," ACS Photonics 4 1607 (2017). [link][pdf][SI_pdf][bibtex]

2016

8. Yongsop Hwang, and Timothy J. Davis*, "Optical metasurfaces for subwavelength difference operations," Applied Physics Letters 109 181101 (2016). [link][pdf][bibtex]

7. Yoon-Ho Kim, Soon-Hong Kwon, Ho-Seok Ee, Yongsop Hwang, You-Shin No, and Hong-Gyu Park*, "Dependence of Q factor on surface roughness in a plasmonic cavity," Journal of the Optical Society of Korea 20 188-191 (2016).  [link][pdf][bibtex]

2014

6. Yongsop Hwang, and Hong-Gyu Park*, "Geometric dependence of metal-coated silicon nanowire plasmonic waveguides," Journal of Optics 16 025001 (2014). [link][pdf][bibtex]

2013

5. Kwang-Yong Jeong, You-Shin No, Yongsop Hwang, Ki Soo Kim, Min-Kyo Seo, Hong-Gyu Park*, and Yong-Hee Lee*, "Electrically driven nanobeam laser," Nature Communications 4:2822 doi: 10.1038/ncomms3822 (2013). [link][pdf][pdf_SI][bibtex]

4. Yongsop Hwang, Min-Soo Hwang, Won Woo Lee, Won Il Park, and Hong-Gyu Park*, "Metal­-coated silicon nanowire plasmonic waveguides," Applied Physics Express 6 042502 (2013). [link][pdf][bibtex]

2011

3. Yongsop Hwang*, Jae-Eun Kim, and Hae Yong Park, "Frequency selective metal-insulator-metal splitters for surface plasmons," Optics Communications 284 4778 (2011). [link][pdf][bibtex]

2. Yongsop Hwang, Jae-Eun Kim, Hae Yong Park*, and Chul-Sik Kee*, "Plasmonic stop band formation in a metal-insulator-metal ring with a narrow gap," Journal of Optics 13 075006 (2011). [link][pdf][bibtex]

1. Yongsop Hwang*, Jonghwa Shin, Jae-Eun Kim, Hae Yong Park, and Chul-Sik Kee*, "Frequency selective heterojunction metal-insulator-metal mirror for surface plasmons,"  Physical Review B 83 235131 (2011). [link][pdf][bibtex]

* Corresponding author

† Equally-contributed

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