Investigation of low-temperature line broadening mechanisms in organic amorphous solids with photon echo, hole-burning and single-molecule spectroscopy

Autor:	Stephan J. Zilker, J. Friebel, Yu. G. Vainer, Dietrich Haarer, R. I. Personov
Rok vydání:	1998
Předmět:	Laser linewidth Photon Chemistry Dispersion (optics) Doping Echo (computing) Analytical chemistry General Physics and Astronomy Physical and Theoretical Chemistry Spectroscopy Amorphous solid Line (formation)
Zdroj:	Chemical Physics Letters. 289:553-558
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(98)00466-7
Popis:	We present the first comparative analysis of spectral data obtained at low temperatures with three different highly selective techniques: two-pulse photon echo (2PE), hole-burning (HB) and single-molecule spectroscopy (SMS) of a polyisobutylene glass (PIB) doped with tetra-tert-butylterrylene (TBT). Our 2PE- and HB-experiments are compared with literature data [Tittel et al., J. Lumin. 64 (1995) 1] obtained by SMS. It is found that the linewidth measured by HB is significantly larger than the mean of the linewidth distribution obtained by SMS. We conclude that a T 2 -dispersion plays an important role in the formation of the linewidth dispersion in TBT/PIB.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6180d4ad94dbf79b51e3df0509933e78 https://doi.org/10.1016/s0009-2614(98)00466-7 Zobrazit plný text záznamu Full Text from ScienceDirect