Unlock instant, AI-driven research and patent intelligence for your innovation.

A wavelength tunable organic thin film laser device based on photoresponse and its application

A technology of laser devices and organic thin films, applied in laser components, lasers, phonon exciters, etc., can solve the problem of single function and achieve low threshold and good light cycle stability

Active Publication Date: 2021-10-01
NANJING UNIV OF POSTS & TELECOMM
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: In order to overcome the defect of single function of existing organic laser devices and better meet the development of future laser technology, the present invention provides a wavelength-tunable organic thin film laser device based on optical response with excellent comprehensive performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wavelength tunable organic thin film laser device based on photoresponse and its application
  • A wavelength tunable organic thin film laser device based on photoresponse and its application
  • A wavelength tunable organic thin film laser device based on photoresponse and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Choose a quartz plate as the substrate, choose the host-guest doping system that meets the Foster energy transfer conditions as the gain medium, and choose the fluorescent gain medium as the host [(9,9-di-n-octylfluorenyl-2,7-diyl) -alt-(benzo[2,1,3]thiadiazole-4,8-diyl)](F8BT), the guest-selective photochromic compound spiro[1,3,3-trimethylindolebenzo Dihydropyran] (SP).

[0029] The mass ratio of the photochromic compound SP in the doping system is 20%. figure 1 Shown is the enlarged spectrum of the thin film device under different radiation light, and the emission wavelength of the device can be reversibly tuned between 570nm and 690nm.

Embodiment 2

[0031] Select polydimethylsiloxane as the flexible substrate, select the host-guest doping system that satisfies the Förster energy transfer conditions as the gain medium, and select the fluorescent gain medium poly[2-methoxy-5-(2-ethane Hexyloxy)-1,4-phenylacetylene] (MEH-PPV), the guest-selective photochromic compound spiro[1,3,3-trimethylindolechroman] (SP).

[0032] The mass ratio of the photochromic compound SP in the doping system is 10%. The emission wavelength of the device can be reversibly tuned between 620nm and 690nm such as figure 2 , and the device has excellent mechanical flexibility.

Embodiment 3

[0034] The distributed Bragg grating made of quartz is selected as the substrate, the host-guest doping system that satisfies the Förster energy transfer conditions is selected as the gain medium, and the host selects the fluorescent gain medium [(9,9-dioctylfluorenyl-2, 7-diyl)-alt-(benzo[2,1,3]thiadiazole-4,8-diyl)](F8BT), the guest-selective photochromic compound spiro[1,3,3-trimethyl Indole chroman] (SP). The mass ratio of the photochromic compound SP in the doping system is 40%. The emission wavelength of the device can be reversibly tuned between 570nm and 690nm, and the emission spectrum is narrower, with higher coherence and monochromaticity.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a wavelength tunable organic thin film laser device and its application based on photoresponse, and belongs to the field of organic laser materials and applications. The invention realizes the amplified spontaneous emission behavior with photoresponse and wavelength tunability in the blend system of laser gain medium and photochromic molecules. The reversible output of red and yellow light can be realized by exposing the device with ultraviolet and visible light respectively. The method of the invention has low cost and simple preparation, and the device can be applied to organic light-emitting diodes and organic laser devices, can modulate the output current and luminous intensity of the device, and construct a multifunctional integrated organic photoelectric device.

Description

technical field [0001] The invention relates to a wavelength tunable organic thin film laser device and its application based on photoresponse, and belongs to the field of organic laser materials and applications. Background technique [0002] Organic lasers have excellent monochromaticity and coherence. In recent years, due to their excellent application prospects in the fields of color laser displays, integrated circuits and optical communications, they have attracted great attention from researchers. Output wavelength tunability is an important figure of merit for evaluating the performance of organic lasers. Wavelength tunable lasers can be widely used in biological detection, holographic imaging, environmental monitoring, and three-dimensional (3D) projection, etc. With the increasing functional requirements of these optoelectronic devices, it is crucial to develop a multifunctional integrated organic laser device. Contents of the invention [0003] Technical problem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/16
CPCH01S3/168
Inventor 赖文勇林赫张嘉玲闫宇姬东周
Owner NANJING UNIV OF POSTS & TELECOMM