Investigation of relaxation times of polymethine dyes absorbing in 750-850 nm spectral range

N. Derevyanko; Rimantas Grigonis; Alexander Ishchenko; Valdas Sirutkaitis

doi:10.1117/12.469097

29 May 2002 Investigation of relaxation times of polymethine dyes absorbing in 750-850 nm spectral range

N. Derevyanko, Rimantas Grigonis, Alexander Ishchenko, Valdas Sirutkaitis

Proceedings Volume 4752, ICONO 2001: Ultrafast Phenomena and Strong Laser Fields; (2002) https://doi.org/10.1117/12.469097
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

The relaxation times ((tau) ) of the first excited state of cationic symmetric polymethine dyes absorbing in the spectral range of 750 - 850 nm have been determined by a direct pump and probe method. The influence of the dye structure and solvent nature on the value of (tau) is discussed. The role of different intra- and intermolecular interactions in deactivation of the excited state of the dyes is considered. The perspective polymethine dyes ((tau) equals 11 - 75 ps) for passive mode locking of lasers on LiGaAlF₆:Cr³⁺, KZnF₃:Cr³⁺, and LiSrAlF₆:Cr³⁺ crystals are proposed from the analysis of relaxation times.

Citation Download Citation

N. Derevyanko, Rimantas Grigonis, Alexander Ishchenko, and Valdas Sirutkaitis "Investigation of relaxation times of polymethine dyes absorbing in 750-850 nm spectral range", Proc. SPIE 4752, ICONO 2001: Ultrafast Phenomena and Strong Laser Fields, (29 May 2002); https://doi.org/10.1117/12.469097

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available