Progress in photothermal microscopy of YBa2Cu3O7-x
AuthorStudenmund, W. R.
Fishman, I. M.
Kino, G. S.
SourceJournal of Physics and Chemistry of Solids
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We present recent differential optical reflectivity (DOR) measurements obtained at 633 nm (2.OeV), 780 nm (1.6eV), 1064 nm (1.16eV), and 1310nm (0.95 eV). We discuss calibration techniques which can correct for variations in experimental parameters, yielding calibrated values of the DOR. We find that all frequencies we are able to observe a signature of the superconducting transition. We find that the exact nature of the signature varies with wavelength and crystalline orientation. © 1998 Published by Elsevier Science Ltd. All rights reserved.