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Periodic Twinning in Crystal Quartz for Optical Quasi-Phase Matched Secondary Harmonic Conversion

Published online by Cambridge University Press:  03 March 2011

Masaki Harada ,
Ken-Ichi Muramatsu ,
Yutaka Iwasaki ,
Sunao Kurimura  and
Takunori Taira
Masaki Harada
Affiliation:
Nikon Corporation, 1-6-1 Shinagawa-ku, Tokyo 140-8601 Japan
Ken-Ichi Muramatsu
Affiliation:
Nikon Corporation, 1-6-1 Shinagawa-ku, Tokyo 140-8601 Japan
Yutaka Iwasaki
Affiliation:
Nikon Corporation, 1-6-1 Shinagawa-ku, Tokyo 140-8601 Japan
Sunao Kurimura
Affiliation:
National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
Takunori Taira
Affiliation:
Laser Research Center for Molecular Science, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
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Abstract

We show here the possibility of optical quasi-phase matched secondary harmonic generation in crystal quartz that is a non-ferroelectric crystal. By utilizing a twinning phenomenon, for the first time, we have succeeded in fabricating periodic modulation of the nonlinear coefficient by hot pressing. In this method, stress is applied vertically on a quartz surface. We also devised a special press system. The numbers of twins we have achieved are 10 for 500 μm and 17 for 250 μm periods, and the depth of the twinned area is about 50 μm. Our results suggest that the twinned regions can be controlled artificially, and over a few tens of microns of twinned depth can be realized.

Keywords

Hot pressingOpticalCrystal
Type
Rapid Communications
Information
Journal of Materials Research , Volume 19 , Issue 4 , April 2004 , pp. 969 - 972
Copyright
Copyright © Materials Research Society 2004

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References

The purpose of this Rapid Communications section is to provide accelerated publication of important new results in the fields regularly covered by Journal of Materials Research. Rapid Communications cannot exceed four printed pages in length, including space allowed for title, figures, tables, references, and an abstract limited to about 100 words.