LASER OSCILLATION ELEMENT - NIPPON OIL CORP

Title:

LASER OSCILLATION ELEMENT

Document Type and Number:

Japanese Patent JP2005244106

Kind Code:

A

Abstract:

To provide a laser oscillation element capable of largely displacing the outgoing direction of beams generated by a laser oscillation to the screw-axis azimuth of a cholesteric liquid crystal.

The laser oscillation element 1 has a cholesteric liquid-crystal layer 2 containing the cholesteric liquid crystal, the cholesteric liquid-crystal layer 3 oppositely arranged to the layer 2 and a fault layer 4 being formed between the layer 2 and the layer 3 and containing a pigment emitting a fluorescence by an optical excitation. A selective reflected wavelength band in the cholesteric liquid crystal and the light-emitting band of the fluorescence emitted from the pigment are superposed in the wavelength range of at least a part. The cholesteric liquid-crystal layer 2 and the cholesteric liquid-crystal layer 3 are not parallel mutually.

Inventors:

TAKEZOE HIDEO
WATANABE JUNJI
NAGATA TAKAAKI
TOYOOKA TAKEHIRO
NISHIMURA RYO

Application Number:

JP2004055027A

Publication Date:

September 08, 2005

Filing Date:

February 27, 2004

Export Citation:

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Assignee:

NIPPON OIL CORP

International Classes:

G02B5/30; H01S3/05; H01S3/08; H01S3/105; (IPC1-7): H01S3/05; G02B5/30

Domestic Patent References:

JP2005236022A	2005-09-02
JPH06318766A	1994-11-15
JP2002536827A	2002-10-29
JP2002296420A	2002-10-09
JP2003195002A	2003-07-09
JP2005136368A	2005-05-26
JP2005136367A	2005-05-26
JP2004054197A	2004-02-19

Other References:

渡辺順次, 竹添秀男: "コレステリック液晶のらせん周期を用いた分布帰還型レーザの創製", 波長集積・操作フォトニクス　−光スペクトル資源の極限利用に向けて−　平成１５年度文部科学省科学研究費, JPN6008065101, 2004, JP, pages 39 - 42, ISSN: 0001277778
TAKAAKI NAGATA, ET AL: "Anomalously Directed Amplified Spontaneous Emission from a Wedge-Shaped Cell Sandwiched by Cholester", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. Vol.43, No.9A/B, JPN7008009032, 3 September 2004 (2004-09-03), JP, pages 1220 - 1222, ISSN: 0001277779

Attorney, Agent or Firm:

Yoshiki Hasegawa
Shiro Terasaki
Hiroaki Aoki

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