Dispersion of the local parameters of quasilocalized low-frequency vibrational modes in a low-temperature glass: Direct observation via single-molecule spectroscopy

2005 ◽  
Vol 122 (24) ◽  
pp. 244705 ◽  
Author(s):  
Yuri G. Vainer ◽  
Andrei V. Naumov ◽  
Markus Bauer ◽  
Lothar Kador
Keyword(s):  
Low Temperature ◽  
Direct Observation ◽  
Single Molecule ◽  
Low Frequency ◽  
Vibrational Modes ◽  
Single Molecule Spectroscopy ◽  
Local Parameters

scholarly journals Low-temperature dynamics in a dye-doped polymer: correspondence between the data obtained by photon echo and single molecule spectroscopy

2018 ◽  
Vol 190 ◽  
pp. 04008
Author(s):  
Kamil Karimullin ◽  
Andrei Naumov
Keyword(s):  
Low Temperature ◽  
Single Molecule ◽  
Vibrational Relaxation ◽  
Low Temperatures ◽  
Photon Echo ◽  
Single Molecule Spectroscopy ◽  
Dye Molecules ◽  
Wide Range ◽  
Temperature Dynamics ◽  
Doped Polymer

Low temperature dynamics (tunneling and vibrational relaxation) in doped polyisobutylene film has been reinvestigated using 2-pulse incoherent photon echo (2IPE) and compared with single-molecule spectroscopy (SMS) data. It has been shown that in a very wide range of low temperatures the 2IPE gives optical dephasing times which correspond to the narrowest zero-phonon lines of single dye molecules.

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