Beam intensity detection in a cavity ring down sensor

• Main Authors: COLE BARRETT E, MARTA TERRY
• Format: Patent
• Language: English
• Published: 18.09.2012
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

A cavity ring down gas sensor may include a radiation source emits an input beam of light having a wavelength corresponding to an absorption line of a gas to be detected. The input beam of light is coupled into an optical cavity to amplify an internal beam of light that is reflected about the optica...