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Wide tuning range dye doping cholesteric liquid crystal laser and preparation method thereof

A cholesteric liquid crystal, large tuning technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of unsatisfactory, small tuning range, etc., achieve large tuning range, realize electric field tuning characteristics, The effect of simple production process

Active Publication Date: 2015-07-29
HARBIN ENG UNIV
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Problems solved by technology

But the small tuning range is still unsatisfactory

Method used

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  • Wide tuning range dye doping cholesteric liquid crystal laser and preparation method thereof
  • Wide tuning range dye doping cholesteric liquid crystal laser and preparation method thereof
  • Wide tuning range dye doping cholesteric liquid crystal laser and preparation method thereof

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following implementation.

[0015] The invention provides a dye-doped cholesteric phase liquid crystal laser with a large tuning range and a preparation method thereof, belonging to the technical field of tunable lasers. According to the present invention, the upper glass substrate and the lower glass substrate are arranged opposite to each other up and down. The lower end of the upper glass substrate is provided with a circular indium tin oxide conductive film, and the upper end of the lower glass substrate is provided with a disc-shaped indium tin oxide conductive film. The ring-shaped indium tin oxide conductive film and the disc-shaped indium t...

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Abstract

The invention belongs to the technical field of tunable lasers, and particularly relates to a wide tuning range dye doping cholesteric liquid crystal laser and a preparation method thereof. The wide tuning range dye doping cholesteric liquid crystal laser comprises an upper glass substrate 1, a circular ring indium tin oxide conductive thin film 2, a cholesteric liquid crystal 3, a laser dye 4, a spacer 5, a disk-shaped indium tin oxide conductive thin film 6 and a lower glass substrate 7. The wide tuning range dye doping cholesteric liquid crystal laser is characterized in that the upper glass substrate and the lower glass substrate are vertically opposite. By the aid of a coaxial disk-circular ring electrode structure, structural parameters such as the thickness of a box, the size of an electrode and the dye doping cholesteric liquid crystal are optimized to obtain a tunable liquid crystal laser structure with a simple manufacturing process and a wide tuning range, and electric field tuning characteristics are effectively realized.

Description

technical field [0001] The invention belongs to the technical field of tunable lasers, in particular to a dye-doped cholesteric liquid crystal laser with a large tuning range and a preparation method thereof. Background technique [0002] Tunable lasers can continuously change the laser output wavelength within a certain range, and are widely used in fields such as spectroscopy, medicine, information processing and communication. Liquid crystal tunable lasers have the characteristics of wide wavelength tuning range from near ultraviolet to near infrared, small size, narrow line width and high optical efficiency, which make them play an important role in optical communication, sensors, medical diagnosis and other fields. Cholesteric liquid crystal is a one-dimensional photonic crystal material with periodic left-handed or right-handed arrangement of molecules, which is mixed with chiral material and nematic liquid crystal, and has an optical gap. Doping laser dyes in cholest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/10
Inventor 刘永军尹向宝孙伟民王家璐杜木青
Owner HARBIN ENG UNIV
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