Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Low-threshold power limitation of optical radiation in crystals with sensitized anti-Stokes luminescence

Not Accessible

Your library or personal account may give you access

Abstract

This paper shows that it is possible in principle to implement low-threshold power limitation in ionic-covalent crystals with adsorbed metal-cluster-dye-molecule structures that possess sensitized anti-Stokes luminescence. The power-limitation effect for radiation with λ=660nm has been detected and investigated at a temperature of 77K for AgCl(I) nanocrystals 40-70nm in size with adsorbed dye molecules and few-atom clusters of silver, dispersed in a gelatine matrix. The effect was observed for radiation with a density of 10<sup>17</sup>-10<sup>19</sup>quant/cm<sup>2</sup>sec at a pulse width of 1ms. The Z-scanning technique was used to establish that the main limitation mechanism is self-focusing, which results from variation of the refractive index of the medium when the electron concentration on traps in the band gap of the nanocrystals varies.

© 2009 Optical Society of America

PDF Article
More Like This
Low threshold anti-Stokes Raman laser on-chip

Hyungwoo Choi, Dongyu Chen, Fan Du, Rene Zeto, and Andrea Armani
Photon. Res. 7(8) 926-932 (2019)

Low power threshold, ultrathin optical limiter based on a nonlinear zone plate

Yuqi Zhao, Hamidreza Chalabi, and Edo Waks
Opt. Express 29(21) 33144-33154 (2021)

Anti-Stokes luminescence in Bismuth-doped silica and germania-based fibers

Sergei V. Firstov, Vladimir F. Khopin, Vladimir V. Velmiskin, Elena G. Firstova, Igor A. Bufetov, Alexei N. Guryanov, and Evgeny M. Dianov
Opt. Express 21(15) 18408-18413 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved