Issue |
Europhys. Lett.
Volume 53, Number 4, February 2001
|
|
---|---|---|
Page(s) | 471 - 477 | |
Section | Atomic and molecular physics | |
DOI | https://doi.org/10.1209/epl/i2001-00176-1 | |
Published online | 01 December 2003 |
Holographic recording with orthogonally polarized waves
in centrosymmetric
1
Institut für Kristallographie, Universität
zu Köln Zülpicherstr. 49b, D-50674 Köln, Germany
2
I.Physikalisches Institut, Universität zu Köln
Zülpicherstr. 77, D-50934 Köln, Germany
3
Institut für Experimentalphysik, Universität Wien
Boltzmanngasse 5, A-1090 Wien, Austria
Corresponding author: m.imlau@uni-koeln.de
Received:
17
July
2000
Accepted:
26
November
2000
Recording of holographic gratings by excitation of long-living
metastable electronic states in centrosymmetric sodium
nitroprusside can be performed with mutually orthogonal polarized
waves. Two different cases have to be distinguished: 1) In a
b-cut the optimum diffraction efficiency of 15% is achieved if
the mutually orthogonal polarized writing waves form an angle of
45
with respect to the a- and c-axis. This, together with
the fact that the polarization state is not changed in the
diffraction process, indicates that the gratings originate from
the presence of light-induced linear dichroism. 2) For a c-cut
the polarization of the diffracted wave turns out to be orthogonal
to the one of the incident beam. The efficiency of this so-called
anisotropic diffraction reaches a maximum of up to 90% for waves
mutually orthogonal polarized along the a- and b-axis.
PACS: 33.80.-b – Photon interactions with molecules / 42.65.Es – Stimulated Brillouin and Rayleigh scattering / 42.40.-i – Holography
© EDP Sciences, 2001
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