Local vibrations in disordered solids studied via single-molecule spectroscopy: Comparison with neutron, nuclear, Raman scattering, and photon echo data

2008 ◽  
Vol 77 (22) ◽  
Author(s):  
Yu. G. Vainer ◽  
A. V. Naumov ◽  
L. Kador
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Photon Echo ◽  
Single Molecule Spectroscopy ◽  
Disordered Solids

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.

scholarly journals Switchable stimulated Raman scattering microscopy with photochromic vibrational probes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jianpeng Ao ◽  
Xiaofeng Fang ◽  
Xianchong Miao ◽  
Jiwei Ling ◽  
Hyunchul Kang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Design Principle ◽  
Stimulated Raman Scattering ◽  
Super Resolution ◽  
Single Molecule Spectroscopy ◽  
Multiplexed Imaging ◽  
Chemical Resolution ◽  
Super Resolution Microscopy ◽  
Stimulated Raman

AbstractPhotochromic probes with reversible fluorescence have revolutionized the fields of single molecule spectroscopy and super-resolution microscopy, but lack sufficient chemical specificity. In contrast, Raman probes with stimulated Raman scattering (SRS) microscopy provides superb chemical resolution for super-multiplexed imaging, but are relatively inert. Here we report vibrational photochromism by engineering alkyne tagged diarylethene to realize photo-switchable SRS imaging. The narrow Raman peak of the alkyne group shifts reversibly upon photoisomerization of the conjugated diarylethene when irradiated by ultraviolet (UV) or visible light, yielding “on” or “off” SRS images taken at the photoactive Raman frequency. We demonstrated photo-rewritable patterning and encryption on thin films, painting/erasing of cells with labelled alkyne-diarylethene, as well as pulse-chase experiments of mitochondria diffusion in living cells. The design principle provides potentials for super-resolution microscopy, optical memories and switches with vibrational specificity.

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