Laser with record short wavelengths developed in Japan

14 September 2015
By Tereza Pultarova
Mobile version
Share |
Japanese researchers have created a laser with record short wavelength

Japanese researchers have created a laser with record short wavelength

Japanese researchers have developed an atomic laser capable of operating at the shortest wavelengths to date, paving the way for improvements in imaging of microscopic objects.

The atomic X-ray laser built by a team from the University of Electro-Communications in Toyko, produces a stable beam of light with a wavelength of 0.15 nanometers, which is almost ten times shorter than what was previously achieved.

The record-breaking laser uses copper atoms to create a stream of photons when the copper foil is exposed to X-ray pulses of different energies. In this case, the researchers used one X-ray pulse as a pump source and the other as a seed of the laser beam.

This approach greatly enhanced the coherence and energy extraction efficiency of the short-wavelength beam.

The researchers hope that with further improvements, the technology could eventually produce ultra-stable, high quality X-ray images, and have a transformative effect on many application fields including medicine, quantum optics and particle physics.

Researchers have been trying to create lasers capable of generating a coherent stream of X-ray radiation for some time hoping for improvements in imaging of molecule-sized objects.

However, the wavelengths that are currently possible to achieve – lying between the UV and X-ray spectrum – still don’t provide enough detail. The laser beam frequently bypasses smaller molecules without bouncing off them, producing less detailed images as a result.

The laser developed by the team led by Hitoki Yoneda is the so called hard X-ray inner-shell atomic laser – a technology originally developed by Yoneda’s team.

Originally, the researchers only used one laser pulse bombarding the copper foil with a stream of electrons, but this approach was less efficient.


Latest Issue

E&T cover image 1607

"As the dust settles after the referendum result, we consider what happens next. We also look forward to an international summer of sport."

E&T jobs

  • Protection and Control Engineer

    • Glasgow, Perth, Inverness or Aberdeen
    • £36,000 - £54,000 Plus Car and Bonus

    To ensure that the network continues to run effectively, we are looking to recruit a Protection and Control Engineer to join our existing teams....

    • Recruiter: SSE

    Apply for this job

  • Control Systems Engineer

    United Utilities
    • Lancaster, Lancashire
    • Up to £33415 + Comprehensive Benefits

    Provide ICA maintenance and engineering support to the Water & Wastewater Production

    • Recruiter: United Utilities

    Apply for this job

  • Principal Systems Engineer

    BAE Systems
    • England, Surrey, Frimley / Dorset, England, Weymouth
    • Competitive package

    Would you like to be involved in designing, developing, and delivering cutting edge combat systems for the world's most advanced military submarines? BAE Systems is recruiting Principal Systems Engineers

    • Recruiter: BAE Systems

    Apply for this job

  • Gas Terminal Engineer

    National Grid
    • Aberdeenshire, Scotland
    • £41000 - £49000 per year

    Gas Terminal Engineer (Oil/Gas/Petrochemical)- St. Fergus, Scotland - National GridSalary: £41-49k depending on experience, plus excellent benefits including: Performance Bonus, a generous pension scheme, flexible benefits, company car We currently have a

    • Recruiter: National Grid

    Apply for this job

  • Associate Network Opportunities

    Premium job

    Smarter Grid Solutions
    • Flexible but may need to spend time in Glasgow, London or New York offices

    We are always keen to work with relevant industry professionals on an associate basis.

    • Recruiter: Smarter Grid Solutions

    Apply for this job

  • Electronics & Control Systems Engineer

    Frazer-Nash Consultancy Ltd
    • Bristol, Burton, Glasgow, Plymouth, Warrington
    • £ Competitive + Benefits

    We are seeking talented Electronics Engineers at all career levels.

    • Recruiter: Frazer-Nash Consultancy Ltd

    Apply for this job

  • Control and Instrumentation Engineers

    Frazer-Nash Consultancy Ltd
    • Bristol, Burton, Glasgow, Gloucester
    • £ Competitive + Benefits

    Frazer-Nash is currently embarking on a period of significant growth of our electrical, electronics, control and instrumentation capability.

    • Recruiter: Frazer-Nash Consultancy Ltd

    Apply for this job

  • Engineering Officer

    Royal Air Force
    • Nationwide
    • £30k pay after initial training + £10k Golden Hello

    Responsible for the optimum performance of all RAF technology, and specialise in either Aerosystems or Communications Electronics.

    • Recruiter: Royal Air Force

    Apply for this job

  • Junior Automation Engineer

    • Worthing, West Sussex

    Your job will directly contribute to the lives of patients receiving our products

    • Recruiter: GSK

    Apply for this job

  • E & I Craftspersons

    • South East England

    An opportunity has arisen to recruit a number of experienced Electrical and Instrumentation Craftsperson’s....

    • Recruiter: SGN

    Apply for this job

More jobs ▶


Choose the way you would like to access the latest news and developments in your field.

Subscribe to E&T