Broadband nonlinear optical response in multi-layer black phosphorus: an emerging infrared and mid-infrared optical material
Shenzhen University · Hunan University · +2 more institutions
Abstract
Black phosphorous (BP), the most thermodynamically stable allotrope of phosphorus, is a high-mobility layered semiconductor with direct band-gap determined by the number of layers from 0.3 eV (bulk) to 2.0 eV (single layer). Therefore, BP is considered as a natural candidate for broadband optical applications, particularly in the infrared (IR) and mid-IR part of the spectrum. The strong light-matter interaction, narrow direct band-gap, and wide range of tunable optical response make BP as a promising nonlinear optical material, particularly with great potentials for infrared and mid-infrared opto-electronics. Herein, we experimentally verified its broadband and enhanced saturable absorption of multi-layer BP…
Citation impact
- FWCI
- 46.33
- Percentile
- 100%
- References
- 50
Authors
9Topics & keywords
- Infrared
- Materials science
- Optoelectronics
- Broadband
- Band gap
- Optics
- Photonics
- Semiconductor