ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,530, issued on Jan. 13, was assigned to Nikira Labs Inc. (Mountain View, Calif.).

"Optical cavity for absorption spectroscopy and methods of assembly" was invented by John Brian Leen (Sunnyvale, Calif.), Manish Gupta (Mountain View, Calif.) and Rupal Gupta (Mountain View, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical cavity includes a cell having at least one structure with a first end and a second end, a first end-cap configured to removably receive a first mirror, and a second end-cap configured to removably receive a second mirror. The first end-cap is attached to the structure at the first end and has an opening with a center ...