Tunneling systems in glasses: Theory of homogeneous optical linewidth
β Scribed by I.S. Osad'ko
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 452 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
A tbeorericxd siodel based on a two-well adiabatic potential for a guest molecule is dkssed. The formula for the homogeneous linewidth is given. Xt hat; an additional term which can depend on temperature as T" with non-integer exponent inlherangelGn<Z.
π SIMILAR VOLUMES
Spectral holes have been burnt in the S r +-Se O-O transition of resorufin in two phases of ethanol glass between 0.3 and 4.2 K. The holewidths differ by a factor of 8 and follow a T '.3 dependence. The homogeneous linewidths (r,,,) in one of the phases are about half those derived from a photon-ech
Photochemical hole-burning has been used to determine the temperature dependence of the homogeneous linewidth l-horn of the o-o s1 -SO tnnsition of free-base porphin (HzP) in 2-methyltetrallydrofur~n (BlTHF) from T = 5 K down to 0.4 K. A T1-30'o"5 dependence for rhom is observed which estrapolntcs t