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pro vyhledávání: '"Roger H. Stolen"'
Autor:
M. A. Bösch, Roger H. Stolen
Publikováno v:
Physical Review Letters. 48:805-808
The Raman scattering spectrum of silica was measured to low temperature and very small frequency shifts. Strain-free cooling of a long silica-core fiber allowed us to investigate Raman scattering of the two-level tunneling systems to 1.5 K. A conside