Publications

• [40]   Single-gate electro-optic beam switching metasurfaces

          S. Han, J. Kong, J. Choi, W. Chegal, and M. S. Jang, Light Sci Appl 14, 292 (2025).

• [39]   Temperature dependence of the dielectric function and critical points of NiI2

          X. A. Nguyen, Y. Lee, J.-G. Park, J. Choi, and T. J. Kim, Applied Surface Science 713, 164340 (2025).

• [38]   Spectroscopic Ellipsometry Investigation of Temperature‐Dependent Dielectric Functions and Critical Points of β‐InSe

          L. V. Le, T. J. Kim, X. A. Nguyen, J. Choi, and Y. D. Kim, Phys. Status Solidi B 262, 2400591 (2025).

• [37]   Emergence of composite many-body exciton states in WS2 and MoSe2 monolayers

J. Choi, J. Li, D. V. Tuan, H. Dery, and S. A. Crooker, Physical Review B 109, L041304 (2024):       Highlighted as Editor’s suggestions 

• [36]   Geometric Analysis Algorithm based on Neural Network with Localized Simulation Data for Nano Grating Structure using Mueller Matrix Spectroscopic Ellipsometry

J. Jung, K. B. Kim, J. Choi, N. Kim, W. Chegal, Y. J. Cho, and Y.-J. Kim, Optics Express 31, 44364-44374 (2023).

• [35]   Fermi-Pressure and Coulomb Repulsion Driven Rapid Hot Plasma Expansion in a van der Waals heterostructure

J. Choi, J. Embley, D. Blach, R. Perea-Causin, D. Erkensten, D. S. Kim, L. Yuan, W. Y. Yoon, T. Taniguchi, K. Watanabe, K. Ueno, E. Tutuc, S. Brem, E. Malic, X. Li, and L. Huang, Nano Letters 23, 4399–4405 (2023).

• [34]   Asymmetric magnetic proximity interactions in MoSe2/CrBr3 van der Waals heterostructures

J. Choi, C. Lane, J.-X. Zhu, and S. A. Crooker, Nature Materials 22, 305-310 (2023).

Highlighted in Nature Materials:  Zhou, T. & Zutic, I., Asymmetry in the magnetic neighbourhood. Nat. Mater. 22, 284 (2023).

• [33]   Proximity Induced Chiral Quantum Light Generation in Strain-Engineered WSe2/NiPS3 Heterostructures

X. Li, A. C. Jones, J. Choi, H. Zhao, V. Chandrasekaran, M. T. Petters, A. Piryatinski, M. A. Tschudin, P. Reiser, D. A. Broadway, P. Maletinsky, N. Sinitsyn, S. A. Crooker, and H. Htoon, Nature Materials 22, 1311-1316 (2023).

• [32]   Dative epitaxy of commensurate monocrystalline covalent-van der Waals moiré supercrystal

M. Bian, L. Zhu, X. Wang, J. Choi, S. Wei, L. Wu, C. Huai, A. Marga, F. Yao, T. Yu, S. A. Crooker, X. M. Cheng, R. F. Sabirianov, J. Lin, Y. Hou, and H. Zeng, Advanced Materials 34, 2200117 (2022).

• [31]    Excitons in semiconductor moiré superlattices

D. Huang, J. Choi, C-K. Shih, X. Li, Nature Nanotechnology 17, 227-238 (2022).

• [30]   Many-Body Exciton and Intervalley Correlations in Heavily Electron-Doped WSe2 Monolayers

J. Li, M. Goryca, J. Choi, X. Xu, and S. A. Crooker, Nano Letters 22, 426-432 (2022).

• [29]    Twist angle dependent interlayer exciton lifetimes in van der Waals heterostructures

J. Choi, M. Florian, A. Steinhoff, D. Erben, K. Tran, D. Kim, L. Sun, J. Quan, R. Claassen, S. Majumder, J. A. Hollingsworth, T. Taniguchi, K. Watanabe, K. Ueno, A. Singh, G. Moody, F. Jahnke, and X. Li, Physical Review Letters 126, 047401 (2021):  Highlighted as Editor’s suggestions 

-     Featured in APS Physics Synopsis: Berkowitz, R. A New Twist on Exciton Lifetimes.

-     Highlighted in Nature Reviews Materials:  Anirban, A. Twist more, live longer. Nat Rev Mater 6, 196 (2021) 

• [28]   Moiré Potential Impedes Interlayer Excitons Diffusion in Van Der Waals Heterostructures

J. Choi, W-T. Hsu, L. Lu, L. Sun, H. Cheng, M. Lee, J. Quan, K. Tran, C. Wang, M. Staab, K. Jones, T. Taniguchi, K. Watanabe, M. Chu, S. Gwo, S. Kim, C-K. Shih, X. Li, and W-H. Chang, Science Advances 6, eaba8866 (2020).

• [27]   Optical Dielectric Function of Single Crystalline Silver Films in the Long Wavelength Range

J. Choi, F. Cheng, J. W. Cleary, L. Sun, K. Dass, J. Hendrickson, C-Y. Wang, S. Gwo, C-K. Shih, and X. Li, Optical Materials Express 10, 693-703 (2020).

• [26]   Moiré and beyond in transition metal dichalcogenide twisted bilayers

K. Tran, J. Choi, and A. Singh, 2D Materials 8, 022002 (2021).

• [25]   Phonon Renormalization Influenced by Atomic Reconstructions of Moiré Patterns in Twisted MoS2 Bilayers

J. Quan, L. Linhart, M.-L. Lin, J. Zhu, C.-Y. Wang, W.-T. Hsu, J. Choi, J. Embley, C. Young, T. Taniguchi, K. Watanabe, C.-K. Shih, A. H. MacDonald, P.-h. Tan, F. Libisch, and X. Li, Nature Materials 20, 1100–1105 (2021).

• [24]   Directional modulation of exciton emission using single dielectric nanospheres

J. Fang, M. Wang, K. Yao, T. Zhang, A. Krasnok, T. Jiang, J. Choi, E. Kahn, B. A. Korgel, M. Terrones, X. Li, A. Alu, and Y. Zheng, Advanced Materials 33, 2007236 (2021).

• [23]    Phonon Dephasing Dynamics in MoS2

L. Sun, P. Kumar, Z. Liu, J. Choi, B. Fangm S. Roesch, K. Tran, J. Casara, E. Priego, Y.-M. Chang, G. Moody, K. L. Silverman, V. O. Lorenz, M. Scheibner, T. Luo, and X. Li, Nano Letters 21, 1434-1439 (2021).

• [22]   3D Hybrid Trilayer Heterostructure: Tunable Au Nanorods and Optical Properties

X. Wang, J. Choi, J. Liu, O. Malis, X. Li, P. Bermel, X. Zhang, and H. Wang, ACS Applied Materials & Interfaces 12, 45015-45022 (2020).

• [21]    Spectrally tunable infrared plasmonic F,Sn:In2O3 nanocrystal cubes

S. H. Cho, K. M. Roccapriore, C. K. Dass, S. Ghosh, J. Choi, J. Noh, L. C. Reimnitz, S. Heo, K. Kim, K. Xie, B. A. Korgel, X. Li, J. R. Hendrickson, J. A. Hachtel, D. J. Milliron, The Journal of Chemical Physics 152, 014709 (2020). 

• [20]   Evidence of Moiré Excitons in Van der Waals Heterostructure

K. Tran, G. Moody, F. Wu, X. Lu, J. Choi, A. Singh, J. Embley, A. Zepeda, M. Campbell, K. Kim, A. Rai, T. Autry, D. A. Sanchez, T. Taniguchi, K. Watanabe, N. Lu, S. Banerjee, E. Tutuc, L. Yang, A. H. MacDonald, K. Silverman, and X. Li, Nature 567, 71-75 (2019).

• [19]    Separation of valley excitons in a MoS2 monolayer using a subwavelength asymmetric groove array

L. Sun, C-Y. Wang, A. Krasnok, J. Choi, J. Shi, J. S. Gomez-Diaz, A. Zepeda, S. Gwo, C-K. Shih, A. Alu, and X. Li, Nature Photonics 13, 180-184 (2019).   

• [18]   Enhancing Functionalities of atomically thin semiconductors with plasmonic nanostructures

M. Cotrufo, L. Sun, J. Choi, A. Alu, and X. Li, Nanophotonics 8, 577-598 (2019).

• [17]   Epitaxial Growth of Optically Thick, Single Crystalline Silver Films for Plasmonics

F. Cheng, C-J. Lee, J. Choi, C-Y. Wang, Q. Zhang, H. Zhang, S. Gwo, W-H. Chang, X. Li, and C-K. Shih, ACS Applied Materials & Interfaces 11, 3189-3195 (2019).

• [16]   Addition of Monovalent Silver Cations to CH3NH3PbBr3 Produces Crystallographically Oriented Perovskite Thin Films

T. D. Siegler, Y. Zhang, A. Dolocan, L. Reimnitz, A. Torabi, M. Abney, J. Choi, G. Cossio, D. W. Houck, E. T. Yu, X. Li, T. B. Harvey, D. J. Milliron, and B. A. Korgel, ACS Applied Energy Materials 2, 6087-6096 (2019).   

• [15]   Atomristors: Memory Effect in Atomically-thin Sheets and Record RF Switches

R. Ge, X. Wu, M. Kim, P.-A. Chen, J. Shi, J. Choi, X. Li, Y. Zhang, M.-H. Chiang, J. C. Lee and D. Akinwande, IEEE International Electron Devices Meeting, 22.6.1-22.6.4 (2018).     

• [14]   Multifunctional Bilayer Template for Near-Infrared Sensitive Organic Solar Cells

H. Kim, H. G. Park, M-J. Maeng, Y. R. Kang, K. R. Park, J. Choi, Y. Park, Y. D. Kim, and C. Kim, ACS Applied Materials & Interfaces 10, 16681-16689 (2018).

• [13]   Epitaxial Growth of Atomically Smooth Aluminum on Silicon and Its Intrinsic Optical Properties

F. Cheng, P-H. Su, J. Choi, S. Gwo, X. Li, and C-K. Shih, ACS Nano 10, 9852-9860 (2016).

• [12]   Construction of Rotating Compensator Ellipsometer Using a MgF2 Monoplate Retarder and its Application to the Study of GaAs

J. Choi, N. S. Barange, M. S. Diware, T. J. Kim, J. C. Park, and Y. D. Kim, NPSM 64, 371-375 (2014).

• [11]   Dielectric functions and interband transitions of InxAl1-xP alloys

T. J. Kim, S. Y. Hwang, J. S. Byun, D. E. Aspnes, E. H. Lee, J. D. Song, C.-T. Liang, Y.-C. Chang, H. G. Park, J. Choi, J. Y. Kim, Y. R. Kang, J. C. Park, and Y. D. Kim, Current Applied Physics 14, 1273-1276 (2014). 

• [10]   Dielectric Functions of Solution-Processed GdAlOx/Si Films Measured with Vacuum Ultra-Violet Spectroscopic Ellipsometry

T. J. Kim, H. G. Park, S. H. Lee, S. M. Hwang, S. Y. Hwang, J. Y. Kim, J. Choi, Y. R. Kang, Y. D. Kim, and J. Joo, Journal of Nanoscience and Nanotechnology 14, 8715-8718 (2014).

• [09]   Analytic Representation of the Dielectric Function of GaN for Temperatures from 26 to 690 K

T. J. Kim, J. S. Byun, J. Choi, H. G. Park, Y. R. Kang, J. C. Park, and Y. D. Kim, Journal of the Korean Physical Society 65, 733-738 (2014).     

• [08]   Ellipsometric Study of the Temperature Dependences of the Dielectric Function and the Critical Points of AlSb at Temperatures from 300 to 803 K

H. G. Park, T. J. Kim, S. Y. Hwang, J. Y. Kim, J. Choi, Y. D. Kim, S. H. Shin, and J. D. Song, Journal of the Korean Physical Society 65, 515-519 (2014).

• [07]   Three-Dimensional Analysis of the Collapse of a Fatty Acid at Various Compression Rates using In Situ Imaging Ellipsometry

S. Y. Hwang, T. J. Kim, J. S. Byun, H. G. Park, J. Choi, Y. R. Kang, J. C. Park, and Y. D. Kim, Journal of the Optical Society of Korea 18, 350-358 (2014). 

• [06]   Analytic Determination of the Dielectric Function of InSb at Energies from 0.74 to 6.42 eV at Temperatures from 31 to 675 K

T. J. Kim, J. S. Byun, J. Choi, H. G. Park, Y. R. Kang, J. C.  Park, and Y. D. Kim, Journal of the Korean Physical Society 64, 1872-1877 (2014).  

• [05]   Temperature dependence of the dielectric functions and the critical points of InSb by spectroscopic ellipsometry from 31 to 675K

T. J. Kim, S. Y. Hwang, J. S. Byun, M. S. Diware, J. Choi, H. G. Park, and Y. D. Kim, Journal of Applied Physics 114, 103501-1-5 (2013). 

• [04]   Optical properties of solution-processed LaAlOx/Si films using spectroscopic ellipsometry

T. J. Kim, S. M. Hwang, J. J. Yoon, S. Y. Hwang, H. G. Park, J. Y. Kim, J. Choi, Y. D. Kim, S. M. Lee, and J. Joo, Journal of Vacuum Science & Technology B 31, 04D110 (2013).

• [03]   Parameterization of the dielectric function of InP from 1.19 to 6.57 eV for temperatures from 25 to 700 K

T. J. Kim, S. Y. Hwang, J. S. Byun, M. S. Diware, J. Choi, H. G. Park, and Y. D. Kim, Journal of Applied Physics 112, 013505-1-6 (2012).

• [02]   Investigation of InSb critical-point energies at 25 K by using spectroscopic ellipsometry  

T. J. Kim, S. Y. Hwang, J. Choi, J. S. Byun, M. S. Diware, H. G. Park, and Y. D. Kim, Journal of the Korean Physical Society 61, 439-443 (2012).  

• [01]   Dielectric function and energy of the E0 critical point of hexagonal GaN at 26 K studied by using spectroscopic ellipsometry

T. J. Kim, S. Y. Hwang, J. Choi, J. S. Byun, N. S. Barange, and Y. D. Kim, Journal of the Korean Physical Society 61, 791-794 (2012).