Patent ID: 7929131
Filing Date: 2011-04-19
Classification: G01J

Abstract:
1. A Raman signal detection system for use with a sample, the detection system comprising: a laser emitter configured to emit a laser emitter output beam; a transmissive optical element including an optical element body, an emitter face, a Raman signal face and a sample face, the emitter face including a short pass optical coating, the Raman signal face including a long pass optical coating, the sample face including a substantially non-reflective coating, the optical element being positioned with the laser emitter output beam incident upon the emitter face, the emitter face being configured to receive the laser emitter output beam and transmit an emitter face output beam through the optical element body and through the sample face to emit a sample face output beam for emission upon a sample, the sample face being configured to receive a sample reflection beam generated from the sample face output beam illuminating the sample and transmit the sample reflection beam to the emitter face, the emitter face further being configured to reflect the sample reflection beam and transmit the sample reflection beam through the optical element body and through the Raman signal face to emit a Raman signal output beam; and a Raman signal detector positioned to receive the Raman signal output beam.