Natural laser discovered in space

Oct. 1, 1995
Scientists on board NASA`s Kuiper Airborne Observatory (KAO) recently discovered the first "natural" laser in space. The KAO was en route from Hawaii to its home base at Moffet Field when the laser was detected at a wavelength of 169 microns.

Scientists on board NASA`s Kuiper Airborne Observatory (KAO) recently discovered the first "natural" laser in space. The KAO was en route from Hawaii to its home base at Moffet Field (Mountain View, CA) when the laser was detected at a wavelength of 169 µm. The scientists were viewing the nearly edge-on gas and dust disk surrounding a young and very hot luminous star in the constellation Cygnus, designated MWC 349, and were searching for selected lasing lines between 50 and 500 µm. Observations were made with the Ames Cryogenic Grating Spectrometera liquid-helium-cooled spectrometer attached to the KAO`s 36-in. reflecting telescope.

According to principal investigator Vladimir Strelnitski of the National Air and Space Museum (NASM, Washington, DC), who made the discovery, the lasing line has an intensity six times brighter than nonamplified spontaneous emissions at the same wavelength. The natural laser is created as intense UV light from the star pumps densely packed hydrogen atoms in the gaseous dusty disk surrounding the star. Then, when IR light shines on the excited hydrogen atoms, the atoms emit an intense beam of light at the same IR wavelength.

Sponsored Recommendations

Download New Product Development Strategies White Paper

March 27, 2025
Discover the importance of new product innovation, different process methods, and best practices for optimizing your company’s strengths.

Manufacturing Considerations for Tolerancing Aspheres

March 13, 2025
Understand the critical factors in manufacturing aspheres and how Lacroix Optics ensures precise tolerancing in every optical component.

Explore Our Videos: Insights into Precision Optics

March 13, 2025
Get an inside look at Lacroix Optics with our collection of informative videos showcasing our capabilities, innovations, and processes.

Optical Assemblies: Reliable and Precise Solutions

March 13, 2025
Ensure your optical system works seamlessly with Lacroix Optics' custom optical assemblies. Discover the precision and reliability we bring to every project.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!