Nonlinear optical properties of near-infrared region Ag2S quantum dots pumped by nanosecond laser pulses.
Beilstein J Nanotechnol
; 6: 1781-7, 2015.
Article
en En
| MEDLINE
| ID: mdl-26425430
ABSTRACT
This study investigates near-infrared region Ag2S quantum dots (QDs) and their nonlinear optical response under 532 nm nanosecond laser pulses. Our experimental result shows that nonlinear transmission is reduced from 0.084 to 0.04. The observed narrowing behavior of the output pulse width shows superior optical limiting. We discuss the physical mechanisms responsible for the nonlinear optical response of the QDs. The average size of the nanocrystals was 5.5 nm. Our results suggest the possibility of using these Ag2S QDs for photoelectric, biosensor, optical ranging, and self-adaptive technologies.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Beilstein J Nanotechnol
Año:
2015
Tipo del documento:
Article
País de afiliación:
China