Abstract

In recent years, the need for a high-power laser has been of great interest for different applications, including direct-laser processing, light detection, medicine, and lighting. However, high-power lasers with high intensities give rise to fundamental problems for optical detectors and imaging systems with low threshold damage, which still need reliable solutions. Here we report and numerically demonstrate a hybrid system that synergistically combines a broadband OPL with a transmittance difference between on-state (70°C) and off-state (25°C) about 62.5%, and a diffraction-limited broadband metalens from 1534 to 1664 nm. Such a metalens power limiter could be used in any system requiring an intermediate focal plane in the optical path to the detector from damage by exposure to high-intensity lasers.

© 2021 Optical Society of America

Double-layer metalens with a reduced meta-atom aspect ratio

Zan Yao, Wenjie Chen, and Yuhang Chen
Opt. Lett. 46(7) 1510-1513 (2021)

Diamond diffractive lens with a continuous profile for powerful terahertz radiation

Maxim Komlenok, Taras Kononenko, Dmitry Sovyk, Vladimir Pavelyev, Boris Knyazev, Evgeny Ashkinazi, Anton Reshetnikov, Gennadii Komandin, Vladimir Pashinin, Victor Ralchenko, and Vitaly Konov
Opt. Lett. 46(2) 340-343 (2021)

Gas-plasma-based generation of broadband terahertz radiation with 640 mW average power

Joachim Buldt, Henning Stark, Michael Müller, Christian Grebing, César Jauregui, and Jens Limpert
Opt. Lett. 46(20) 5256-5259 (2021)

Broadband quarter-wave birefringent meta-mirrors for generating sub-diffraction vector fields

Yuyan Li, Luyao Cao, Zhongquan Wen, Chunyan Qin, Junbo Yang, Zhihai Zhang, Gaofeng Liang, Zhengguo Shang, Kun Zhang, Shuo Zhang, Luru Dai, and Gang Chen
Opt. Lett. 44(1) 110-113 (2019)

Large deflection angle, high-power adaptive fiber optics collimator with preserved near-diffraction-limited beam quality

Dong Zhi, Yanxing Ma, Zilun Chen, Xiaolin Wang, Pu Zhou, and Lei Si
Opt. Lett. 41(10) 2217-2220 (2016)