All-optical control of semiconductor nanostructure scattering/absorption via the photothermal effect [Invited]
Journal
Journal of the Optical Society of America B
Journal Volume
41
Journal Issue
11
Start Page
D61
ISSN
0740-3224
1520-8540
Date Issued
2024-09-26
Author(s)
Nishida, Kentaro
Cheng, Hao-Yu
Petrov, Mihail
Chen, Kuo-Ping
Takahara, Junichi
Li, Xiangping
Lin, Kung-Hsuan
Abstract
The recent evolution of semiconductor nanodevices, including nanoresonators and metasurfaces, has provided active tunability of optical functionality by efficiently utilizing various mechanisms such as mechanical deformation, carrier concentration modulation, and a tunable liquid crystal medium. Among these ideas, thermally induced nonlinear light–matter interaction holds great potential to realize all-optical control of signal intensity with exceptionally large modulation depth. Here, we review recent innovations on all-optical photothermal control of resonant semiconductor nanophotonics devices by using pulse-excited transient modulation, the thermo-optic effect under continuous wave laser excitation, and chalcogenide phase change materials.
Publisher
Optica Publishing Group
Type
journal article