chanelink logo
CHANELINK
日本語

This innovation will significantly improve the sensitivity of gravitational wave detectors

745
2024-04-17 16:23:40
翻訳を見る

In 2017, the detection of gravitational waves generated by the merger of binary neutron stars marked a significant breakthrough in physics. These waves reveal important information about the universe, from the origin of short gamma ray bursts to the formation of heavy elements.

However, capturing gravitational waves from the merged residue remains a challenge as these waves avoid the detection range of the current detector. However, they can illuminate the internal structure of neutron stars.

The solution may lie in amplifying signals through optical springs and simulating spring behavior using the radiation pressure of light. The Tokyo Institute of Technology's Japan research group, led by associate professors Kentaro Somiya and Dr. Sotatsu Otabe, has proposed an innovation: Kerr effect enhanced optical springs.

In order to make the system more sensitive without requiring more energy, researchers used special techniques in optical equipment. They introduced a material called Kerr medium. This material has a unique characteristic of changing the refractive index of light.

Due to this feature, the device can act as a harder optical spring, thereby enhancing its ability to respond to very subtle changes (such as those caused by gravitational waves) without consuming more energy. Tests have shown that this method increases the hardness of lightweight springs by 1.6 times, enabling the device to detect changes at higher frequencies (from 53 Hz to 67 Hz).

This progress paves the way for the next generation of gravitational wave detectors, which can detect elusive waves to date and provide us with an additional key to understanding the composition of the universe. The proposed design is easy to implement and introduces adjustable parameters into the optomechanical system.

Source: Laser Net

関連のおすすめ

  • Developing nanocavities for enhancing nanoscale lasers and LEDs

    As humanity enters a new era of computing, new small tools are needed to enhance the interaction between photons and electrons, and integrate electrical and photon functions at the nanoscale. Researchers have created a novel III-V semiconductor nanocavity that can limit light below the so-called diffraction limit, which is an important step towards achieving this goal.In the journal Optical Materi...

    2024-01-29
    翻訳を見る

  • The estimated output value of the LiDAR market in 2029 is expected to reach 5.352 billion US dollars

    Market research firm TrendForce Consulting released an industry insight report today, stating that currently LiDAR is mainly used in the automotive market for passenger cars and unmanned taxis, while in the industrial market it supports applications such as robotics, factory automation, and logistics.The report points out that driven by Level 3 and more advanced auto drive system system and logist...

    01-22
    翻訳を見る

  • Progress in research on neodymium doped strontium aluminate lanthanum magnesium laser crystals by Shanghai Optics and Machinery Institute

    Recently, the Advanced Laser and Optoelectronic Functional Materials Department of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has made progress in the research of Nd: ASL (Sr0.7Nd0.05La0.25Mg0.3Al22.7O19) laser crystals, and the related achievements were published in Infrared Physics&Technology under the title of "Tunable laser operations on Nd doped cont...

    2024-04-17
    翻訳を見る

  • Korean laser company AP Systems establishes new AVP equipment division

    Recently, AP Systems, a well-known laser manufacturer in South Korea, established a new AVP equipment division for the advanced packaging field. This business unit will focus on laser equipment required for advanced packaging processes of high bandwidth memory (HBM).AP Systems is a subsidiary of APS Group, mainly focused on the fields of display and semiconductor laser processing equipment. It foc...

    01-15
    翻訳を見る

  • By 2030, the global market size of medical laser fiber will reach 1.369 billion US dollars

    According to a recent report by Congic Business Intelligence, the global medical laser fiber market is expected to grow significantly at a compound annual growth rate of 6.9% from 2023 to 2030. This growth is attributed to the increasing popularity of minimally invasive surgery worldwide.The medical laser fiber market is expected to expand strongly, reaching $1.369 billion by 2030. The market is v...

    2023-10-27
    翻訳を見る