US Patent Issued to The Chinese University of Hong Kong on Sept. 23 for "Pump-probe photothermal spectroscopy having passive phase detection and an optical waveguide" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,351, issued on Sept. 23, was assigned to The Chinese University of Hong Kong (Hong Kong).

"Pump-probe photothermal spectroscopy having passive phase detection and an optical waveguide" was invented by Wei Ren (Hong Kong), Chenyu Yao (Ping Village, China) and Mengyuan Hu (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A passive-phase-detection photothermal spectroscopy (PTS) system and methods are provided for gas measurements. The PTS system includes a pump laser source, a probe laser source, the pump and probe laser beams simultaneously propagating through an optical waveguide having a target gas specimen. Moreover, the PTS system can be...