English

A new type of electrically driven organic semiconductor laser can be used in the fields of spectroscopy, metrology, and sensing

1091
2023-10-07 16:48:45
See translation

According to a report from Maims Consulting, scientists at the University of St. Andrews in the UK recently stated that they have made a "significant breakthrough" in the decades of challenges in developing compact organic semiconductor laser technology. 

Firstly, an OLED with a world record light output was manufactured, and then integrated with a polymer laser structure. This new type of laser emits a green laser beam composed of short light pulses.

Structure of electrically driven organic semiconductor lasers
The paper published in the journal Nature explains how the research team at the University of St. Andrews overcomes common organic semiconductor problems such as low current density and intolerable losses caused by injecting charges into the gain medium.
The paper points out that "researchers have achieved loss reduction by developing an integrated device structure that effectively combines OLEDs with extremely high internal light generation capabilities with polymer distributed feedback lasers. Under the electrical driving of the integrated structure, the threshold of light output and driving current can be observed, with a narrow emission spectrum and the formation of a laser beam above the threshold.

The research results provide an organic electronic device that has never been proven before, and indicate that indirect electric pumping of OLEDs is a very effective method for achieving electrically driven organic semiconductor lasers. This provides a method for visible light lasers that can be applied in the fields of spectroscopy, metrology, and sensing.

The conclusion of the paper is: "Researchers have demonstrated an integrated device method that can achieve electrically driven lasers in organic semiconductors, thus solving an important challenge in organic optoelectronics. This method overcomes the main difficulties commonly encountered in direct electrical injection attempts of organic or hybrid perovskite lasers, while retaining operational advantages.

Original link:https://www.eet-china.com/mp/a256224.html

Source: MEMS, Breadboard Community - Core Language

Related Recommendations
  • Industrial laser giant Coherent receives $33 million investment

    Recently, according to media reports, industrial laser giant Coherent has signed a "preliminary terms memorandum" with the US Department of Commerce, which will receive up to $33 million in investment under the Chip and Science Act.It is reported that the funds will mainly be used to support the modernization and expansion project of the cutting-edge manufacturing cleanroom in Coherent's existing ...

    2024-12-12
    See translation
  • A New Method for Controlling Light Polarization Using Liquid Crystal to Create Holograms

    Researchers have made significant breakthroughs in controlling optical polarization, which is a key characteristic of various applications such as augmented reality, data storage, and encryption.This new method was developed by a group of scientists using liquid crystals to create holograms, which can manipulate the polarization of light at different points. This represents a significant advanceme...

    2024-03-12
    See translation
  • Research Progress in High Efficiency Supercontinuum Spectra in Specific Wavebands Made by Shanghai Optics and Machinery High Power Laser Unit Technology Laboratory

    Recently, the High Power Laser Unit Technology Laboratory of Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has made progress in research on high efficiency supercontinuum in specific bands. The relevant research results were published in the Journal of Lightwave Technology under the title of "Strong Anti Stokes and flat supercontinuum in specified band based on non ...

    2023-10-17
    See translation
  • NLIGHT releases new fiber laser products

    Recently, nLIGHT launched a new series of ProcessGUARD fiber lasers, which innovatively integrates process monitoring systems with fiber lasers and is committed to providing quality "protection" for applications such as cutting, welding, and additive manufacturing.New ConceptThe nLIGHT ProcessGUARD series fiber laser integrates a photodiode based plasma process monitoring system into the nLIGHT Co...

    2024-11-07
    See translation
  • NUBURU announces its latest strategic blueprint

    Following the announcement of the immediate termination of a $2 million stock exchange agreement and its partnership with HUMBL, high-power blue laser light source manufacturer NUBURU has once again announced its latest strategic blueprint. Through specific understanding, after this strategic update, NUBURU's business model will cover two collaborative key business lines, with a focus on defense a...

    04-17
    See translation