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Polymer-stabilized liquid crystal laser and preparation method and equipment thereof

A technology for stabilizing liquid crystals and lasers, applied in the field of lasers, which can solve the problems of low emission intensity and high laser threshold

Pending Publication Date: 2021-06-04
SOUTH CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the gain medium of polymer-stabilized liquid crystal lasers is usually luminescent dyes such as DCM and PM597, but common luminescent dyes will make the laser threshold of polymer-stabilized liquid crystal lasers high and the emission intensity low

Method used

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  • Polymer-stabilized liquid crystal laser and preparation method and equipment thereof
  • Polymer-stabilized liquid crystal laser and preparation method and equipment thereof
  • Polymer-stabilized liquid crystal laser and preparation method and equipment thereof

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...

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Abstract

The invention discloses a polymer-stabilized liquid crystal laser and a preparation method and equipment thereof. The polymer stabilized liquid crystal laser comprises a laser main body, wherein the laser main body comprises a first light-transmitting conductive layer; a second light-transmitting conductive layer, arranged opposite to the first light-transmitting conductive layer; and a resonant cavity unit, located between the first light-transmitting conductive layer and the second light-transmitting conductive layer, and the resonant cavity unit being filled with perovskite quantum dot polymer stable liquid crystals. The polymer-stabilized liquid crystal laser provided by the embodiment of the invention at least has the following beneficial effects that the perovskite quantum dots in the polymer-stabilized liquid crystal have relatively high fluorescence quantum yield, and the fluorescence quantum yield can reach 50-100%. The extremely high fluorescence quantum yield enables ASE to be more easily generated, correspondingly, laser emission is more easily generated, and therefore higher emission intensity and a lower laser threshold value are further achieved.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a polymer stabilized liquid crystal laser and a preparation method and equipment thereof. Background technique [0002] A laser usually consists of three parts: a pump source, a resonant cavity and a gain medium. The gain medium is generally a luminescent dye or a semiconductor luminescent material. The pump source is used as an external energy source to cause the gain medium to generate particle population inversion, and the resonant cavity selects light with a certain frequency and wavelength for gain amplification. When the gain of the generated light is greater than the loss Threshold, the laser can produce laser emission. At present, the most commonly used lasers are semiconductor lasers, but semiconductor lasers have poor temperature characteristics, are prone to noise and output light divergence, and are not suitable for use in some occasions. In contrast, polymer-stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/08H01S3/106
CPCH01S3/08H01S3/1065
Inventor 胡小文林炜熙姜小芳周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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