Abstract

Graphene-based terahertz (THz)-field-induced optical luminescence (GB-TFIOL) is proposed in this Letter as a novel, to the best of our knowledge, THz imaging technique. We experimentally show that two-dimensional distribution of the optical luminescence from a monolayer graphene traces the beam profile of the pump THz radiation. The atomic thickness of a graphene detector, as well as a strong nonlinear dependence of optical luminescence on THz field, make the GB-TFIOL technique a useful tool for near-field mapping. A proof-of-principle experiment of the visualization of local THz-field enhancement near a metal tip with a 2 µm radius curvature was performed.

© 2021 Optical Society of America

Quantitative terahertz emission nanoscopy with multiresonant near-field probes

Fabian Mooshammer, Markus Plankl, Thomas Siday, Martin Zizlsperger, Fabian Sandner, Rocco Vitalone, Ran Jing, Markus A. Huber, D. N. Basov, and Rupert Huber
Opt. Lett. 46(15) 3572-3575 (2021)

Terahertz wave near-field compressive imaging with a spatial resolution of over λ/100

Si-Chao Chen, Liang-Hui Du, Kun Meng, Jiang Li, Zhao-Hui Zhai, Qi-Wu Shi, Ze-Ren Li, and Li-Guo Zhu
Opt. Lett. 44(1) 21-24 (2019)

3D porous graphene-assisted capsulized cholesteric liquid crystals for terahertz power visualization

Lei Wang, Ruiwen Xiao, Shengxin Yang, Hongsong Qiu, Zhixiong Shen, Peng Lv, Caihong Zhang, Wei Hu, Makoto Nakajima, Biaobing Jin, and Yanqing Lu
Opt. Lett. 45(20) 5892-5895 (2020)

Improving time and space resolution in electro-optic sampling for near-field terahertz imaging

François Blanchard and Koichiro Tanaka
Opt. Lett. 41(20) 4645-4648 (2016)

Mid-infrared imaging through up-conversion luminescence in trivalent lanthanide ion-doped self-organizing optical fiber array crystal

Marilou Cadatal-Raduban, Masao Yoshino, Yuui Yokota, Akira Yoshikawa, Norihiko Hayazawa, Daizo Asano, Keito Shinohara, Toshihiko Shimizu, Nobuhiko Sarukura, and Kohei Yamanoi
Opt. Lett. 46(5) 941-944 (2021)