Abstract

In the course of a light-scattering experiment with a 45° Y-cut KH2 PO4 crystal, some new crystal-optics phenomena were observed in the ferroelectric phase when light was incident 45° to the polar axis. (i) A bright oblique line appears in the crystal, (ii) two mutually orthogonally polarized beams, of which images consist of many stripes, emerge from the crystal perpendicular to the incident beams, and (iii) the irradiances of these beams as well as that of the Raman scattering exhibit oscillatory changes with temperature and tend to constant values at TcT > 10°–15°. These effects are explained in terms of reflection and interference of light by domains. It is found that domain walls in KH2PO4 act as reflecting planes, that many beams generated by the reflection at least partially interfere, and that the domain structure can drastically change the polarization state of light as it passes through the crystal. This provides a new optical method to obtain knowledge of domain structures in ferroelectrics.

© 1973 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Linear Electro-Optic Effects in KH2PO4 and Its Isomorphs

James H. Ott and T. R. Sliker
J. Opt. Soc. Am. 54(12) 1442-1444 (1964)

Dielectric and optical properties of electron-beam-addressed KD2PO4

David Casasent and William Keicher
J. Opt. Soc. Am. 64(12) 1575-1581 (1974)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription