OPTICAL MICROPHONE AND METHOD USING THE SAME

摘要

An optical microphone (10) and a method using the same are described. The optical microphone (10) comprises a light source (11) configured to emit a light beam and an acoustic sensor (12) configured to reflect the light beam. The acoustic sensor (12) includes single-wall nanotubes and deflects in response to pressure waves. An optional reflector (15) of the optical microphone (10) is configured to re-reflect the light beam from the acoustic sensor (12). A detector (13) is configured to detect the light beam from the acoustic sensor (12) or the reflector (15), and thus measures the pressure waves.