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Ferroelectrics Volume 364, 2008 - Issue 1
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Original Articles

Lasing Characteristics of Ferroelectric Liquid Crystal in Dielectric Mirror Cavity

Yuko Matsuhisa Department of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-Oka, Suita, Osaka, 565-0871, Japan
,
Yuuki Takao Department of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-Oka, Suita, Osaka, 565-0871, Japan
,
Wolfgang Haase Institute of Physical Chemistry, Darmstadt University of Technology, Petersenstr. 20, Darmstadt, 64287, Germany
,
Akihiko Fujii Institute of Physical Chemistry, Darmstadt University of Technology, Petersenstr. 20, Darmstadt, 64287, Germany
&
Masanori Ozaki Department of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-Oka, Suita, Osaka, 565-0871, Japan
Pages 60-65 | Received 26 Sep 2007, Published online: 20 Sep 2010
 
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Abstract

A laser action of ferroelectric liquid crystal (FLC) in a dielectric mirror cavity was investigated. The single-mode laser action was observed at the band edge of the FLCs. The lasing threshold was much lower than that of the simple FLCs without an external cavity because of the double optical confinement effects caused by the band-edge effect of the FLCs and a dielectric mirror cavity. The effect of the double optical confinement was confirmed by applying the electric field to unwound the FLC helix.

Acknowledgment

This work is partially supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

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