Ultrafast anisotropic optical-gap shift in low-symmetry layered GeS
Sung Bok Seo†, Sanghee Nah†, Muhammad Sajjad†, Jianxiang Chen†, Sang Ho Suk, Sangwan Sim*
Advanced Optical Materials, 2025
24
Slow hot carrier cooling and quasi-Fermi shift dynamics in few-layer α-In₂Se₃ via transient absorption spectroscopy
Sung Bok Seo†, Sanghee Nah†, Muhammad Sajjad, Sang Ho Suk, Sangwan Sim*
Advanced Optical Materials, 2025
25
Sub-picosecond, strain-tunable, polarization-selective optical switching via anisotropic exciton dynamics in quasi-1D ZrSe3
Sang Ho Suk†, Sanghee Nah†, Muhammad Sajjad†, Sung Bok Seo†, Jianxiang Chen, Sangwan Sim*
Light: Science & Applications, 2024
26
(invited review) Ultrafast optical properties and applications of anisotropic 2D materials
Sang Ho Suk†, Sung Bok Seo†, Yeon Sik Cho, Jun Wang, Sangwan Sim*
Nanophotonics, 2024
27
Ultrafast visible/near-infrared dual-band selective optical switching via polarization control in layered low-symmetry TlSe
Sang Ho Suk†, Sanghee Nah†, Muhammad Sajjad†, Sung Bok Seo, Jiacheng Song, Nirpendra Singh, Hionsuck Baik, Sangwan Sim*
Laser & Photonics Reviews, 2024
28
Polarization-driven ultrafast optical switching in TiS3 nanoribbons via anisotropic hot carrier dynamics
Sang Ho Suk†, Sanghee Nah†, Muhammad Sajjad†, Sung Bok Seo, Jiacheng Song, Nirpendra Singh, Sangwan Sim*
Advanced Optical Materials, 2023
29
Completely anisotropic ultrafast optical switching and direction-dependent photocarrier diffusion in layered ZrTe5
Sung Bok Seo†, Sanghee Nah†, Muhammad Sajjad†, Jiacheng Song†, Nirpendra Singh, Sang Ho Suk, Hionsuck Baik, Sanghoon Kim, Geun-Ju Kim, Jung-Il Kim, Sangwan Sim*
Advanced Optical Materials, 2023
30
Ultrafast tunable broadband optical anisotropy in two-dimensional ReS2
Sung Bok Seo†, Sanghee Nah†, Muhammad Sajjad†, Nirpendra Singh, Youngwook Shin, Younghyun Kim, Jaekyun Kim, Sangwan Sim*