Journals

†co-first author(s), *corresponding author(s)

• Published

[23] Enhancing Stability and Optical Performance of Monolayer MoS2 by Encapsulation with Pulsed Laser Deposited Amorphous Boron Nitride

D. T. Yimam, S. B. Harris, Tae Gwan Park, A. C. Houston, A. A. Puretzky, K. Kang, C. Rouleau, G. Duscher, D. B. Geohegan, and K. Xiao*

ACS Applied Materials & Interfaces in press (2026)

[22] Octave-Spanning Terahertz Quarter-Wave Plates Based on Over-Coupled Fabry–Pérot Resonances in Reflective Metal–Dielectric–Metal Metasurfaces

Tae Gwan Park, Chun-Chieh Chang, Antoinette J. Taylor, Abul K. Azad, and Hou-Tong Chen*

Journal of Applied Physics 139, 243105 (2026).

[21] Spontaneous Polarization Suppression of Exciton–Exciton Annihilation in Rhombohedral Stacked Bilayer Molybdenum Disulfide

Tae Gwan Park, Xufan Li, Kyungnam Kang, David B. Geohegan, Christopher M. Rouleau, Alexander A. Puretzky*, and Kai Xiao*

ACS Nano 20, 18873–18882 (2026).

[20] Direct Observation of Ultrafast Defect-Bound and Free Exciton Dynamics in Defect-Engineered WS2 Monolayers

Tae Gwan Park, Xufan Li, Kyungnam Kang, Austin Houston, Liam Collins, Gerd Duscher, David B. Geohegan, Christopher M. Rouleau, Kai Xiao*, and Alexander A. Puretzky*

ACS Nano 20, 2904–2917 (2026).

[19] Terahertz Chiral Metamaterial Enabling Broadband Polarization Conversion using the Polarization Guiding Effect

Y. S. Choi, Tae Gwan Park, Antoinette J. Taylor, Hou-Tong Chen*, and Abul K. Azad*

Advanced Materials Technologies 11, e02323 (2026).

[18] Mode-Selective and Anomalous Decoherent Decoherence Mechanisms of Interlayer Phonons in a Topological Insulator

Eon-Taek Oh†, Tae Gwan Park†, Seong-Eun Lim, Hong Ryeol Na, Seung-Hyun Chun, Sunghun Lee, and Fabian Rotermund*

ACS Nano 20, 624-635 (2026).

[17] Low Surface Recombination Velocity and Enhanced Photocarrier Dynamics in Bi2O2Se Nanosheets

Tae Gwan Park†, Minsoo Kang†, Eon-Taek Oh†, Ayoung Ham, Kibum Kang*, and Fabian Rotermund*

Advanced Optical Materials 2403138 (2025).

[16] Ultrafast Exciton and Trion Dynamics in Highly n-doped MoS2 Monolayers: Many-Body Effects

Tae Gwan Park, Xufan Li, David B. Geohegan, Christopher M. Rouleau, Alexander A. Puretzky*, and Kai Xiao*

Physical Review B 111, 075410 (2025).

[15] Cross-Correlation between Crystallinity and Optoelectronic Properties of Mixed-Perovskite Thin Films through Multiple Time-Resolved Spectroscopy

Junho Park†, Bong Joo Kang†, Gabkyung Seo, Juwon Kim, Tae Gwan Park, Seongsik Nam, Jason J. Yoo, Kitae Lee, Young Uk Jeong, Myeongkee Park, Seong Sik Shin*, and Fabian Rotermund*

Advanced Energy Materials 15, 2400225 (2025).

[14] Spectroscopic Evidence of Ultrafast Topological Phase Transition by Light-Driven Strain

Tae Gwan Park, Seungil Baek, Junho Park, Eui-Cheol Shin, Hong Ryeol Na, Eon-Taek Oh, Seung-Hyun Chun, Yong-Hyun Kim*, Sunghun Lee*, and Fabian Rotermund*

ACS Nano 18, 30966-30977 (2024).

[13] Terahertz-Polarizing Effect based on Geometric Anisotropy of Ti3C2Tx MXene Nanosheets

Changjae Lee†, Eon-Taek Oh†, Tae Gwan Park, Seongeun Lee, Seon Joon Kim, Yun-Seok Choi*, Fabian Rotermund*, and Dong Ki Yoon*

Carbon 225, 119156 (2024).

[12] Two-Photon Excitation Photosensitizers for Photodynamic Therapy: From Small-Molecules to Nano-Complex Systems

Vinayak Juvekar, Dong Joon Lee, Tae Gwan Park, Rohit Samanta, Pallavi Kasar, Chaeyoon Kim, Fabian Rotermund*, and Hwan Myung Kim*, 

Coordination Chemistry Reviews 506, 215711 (2024).

[11] Ultrafast Acousto-Optic Modulation at the Near-Infrared Spectral Range by Interlayer Vibrations

Tae Gwan Park, Chaeyoon Kim, Eon-Taek Oh, Hong Ryeol Na, Seung-Hyun Chun, Sunghun Lee*, and Fabian Rotermund*

Nanophotonics 13, 1059-1068 (2024).

[10] Ultrafast Formation of Quantized Interlayer Vibrations in Bi2Se3 by Photoinduced Strain Waves

Tae Gwan Park, Eon-Taek Oh, Sungwon Kim, Yunbo Ou, Jagadeesh Moodera, Hyunjung Kim, and Fabian Rotermund*

Optics Express 30, 35988-35998 (2022).

[9] Ultrafast Interfacial Carrier Dynamics and Persistent Topological Surface States of Bi2Se3 in Heterojunctions with VSe2

Tae Gwan Park, Jae Ho Jeon, Seung-Hyun Chun, Sunghun Lee*, and Fabian Rotermund*

Communications Physics 5, 1-11 (2022).

[8] Coherent Control of Interlayer Vibrations in Bi2Se3 van der Waals Thin-Films

Tae Gwan Park, Hong Ryeol Na, Seung-Hyun Chun, Won Bae Cho, Sunghun Lee*, and Fabian Rotermund*

Nanoscale 13, 19264-19273 (2021).

[7] Interlayer Coupling and Ultrafast Hot Electron Transfer Dynamics in Metallic VSe2/Graphene van der Waals Heterostructures

Tae Gwan Park†, Byoung Ki Choi†, Junho Park, Jungdae Kim, Young Jun Chang*, and Fabian Rotermund*

ACS Nano 15, 7756-7764 (2021). (*featured in The JoongAng)

[6] Efficient Perovskite Solar Cells via Improved Carrier Management

Jason J. Yoo†, Gabkyung Seo†, Matthew R. Chua, Tae Gwan Park, Yongli Lu, Fabian Rotermund, Young-Ki Kim, Chan Su Moon, Nam Joong Jeon, Juan-Pablo Correa-Baena, Vladimir Bulović, Seong Sik Shin*, Moungi G. Bawendi* and Jangwon Seo*

Nature 590, 587 (2021). (*journal cover)

[5] Single-Walled Carbon-Nanotube Saturable Absorber assisted Kerr-Lens Mode-Locked Tm:MgWO4 Laser

Li Wang, Weidong Chen*, Yongguang Zhao, Yicheng Wang, Zhongben Pan, Haifeng Lin, Ge Zhang, Lizhen Zhang, Zhoubin Lin, Ji Eun Bae, Tae Gwan Park, Fabian Rotermund, Pavel Loiko, Xavier Mateos, Mark Mero, Uwe Griebner, and Valentin Petrov

Optics Letters 45, 6142 (2020).

[4] Spectroscopy and Diode-Pumped Laser Operation of Transparent Tm:Lu3Al5O12 Ceramics Produced by Solid-State Sintering

Fangxin Yue, Pavel Loiko, Mengting Chen, Josep Maria Serres, Yicheng Wang, Jiang Li, Liza Basyrova, Elena Dunina, Alexey Kornienko, Liudmila Fomicheva, Shibo Dai, Zhenqiang Chen, Ji Eun Bae, Tae Gwan Park, Fabian Rotermund, Venkatesan Jambunathan, Antonio Lucianetti, Tomas Mocek, Magdalena Aguiló, Francesc Díaz, Uwe Griebner, Valentin Petrov, and Xavier Mateos*

Optics Express 28, 28399 (2020).

[3] SWCNT-SA Mode-Locked Tm:LuYO3 Ceramic Laser Delivering 8-Optical-Cycle Pulses at 2.05 μm

Yongguang Zhao, Li Wang, Yicheng Wang, Jian Zhang, Peng Liu, Xiaodong Xu, Ying Liu, Deyuan Shen, Ji Eun Bae, Tae Gwan Park, Fabian Rotermund, Xavier Mateos, Pavel Loiko, Zhengping Wang, Xingguang Xu, Jun Xu, Mark Mero, Uwe Griebner, Valentin Petrov, and Weidong Chen*

Optics Letters 45, 459 (2020).

[2] Carbon Nanotube Q-switched Yb:KLuW Surface Channel Waveguide Lasers

Ji Eun Bae, Tae Gwan Park, Esrom Kifle, Xavier Mateos, Magdalena Aguiló, Francesc Díaz, Carolina Romero, Javier Rodríguez Vázquez de Aldana, Hansuek Lee, and Fabian Rotermund*

Optics Letters 45, 216 (2020).

[1] Graphene Mode-Locked Tm, Ho-codoped Crystalline Garnet Laser Producing 70-fs Pulses near 2.1 µm

Yongguang Zhao, Weidong Chen, Li Wang, Yicheng Wang, Zhongben Pan, Xiaojun Dai, Hualei Yuan, Huaqiang Cai, Yan Zhang, Ji Eun Bae, Tae Gwan Park, Fabian Rotermund, Pavel Loiko, Josep Maria Serres, Xavier Mateos, Deyuan Shen, Uwe Griebner, and Valentin Petrov*

OSA Continuum 2, 2593 (2019). (editor's pick)

Patent

[1] Hypersonic Acousto-Optic Modulator and Manufacturing Method Thereof 

Fabian Rotermund, Tae Gwan Park, Eon-Taek Oh

Registration #: 10-2748092 (2024), Korea.