Beat frequency QEPAS sensor for ultra-sensitive calibration-free trace gas detection was developed. The resonance frequency and Q-factor of the quartz tuning fork as well as the trace gas concentration can be obtained simultaneously.

© 2018 The Author(s)

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription