Photoacoustic HF sensor

Matthias Dressler; Günther Helmrich; Hermann Harde

doi:10.1117/12.781679

28 April 2008 Photoacoustic HF sensor

Matthias Dressler, Günther Helmrich, Hermann Harde

Proceedings Volume 7003, Optical Sensors 2008; 70031F (2008) https://doi.org/10.1117/12.781679
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

The development of new radiation sources has a major impact on the progress of optical trace gas detection. Particularly distributed feedback (DFB) diode lasers have proven to be very useful devices for spectroscopic sensors due to their spectral purity, direct modulation via the injection current, their small size and low acquisition cost. In this contribution we present a new sensor for hydrofluoric acid (HF), based on a room temperature DFB diode laser at 2.47 μm in combination with a photoacoustic detection scheme. The sensor enables detection of HF concentrations of less than 10 ppb with an excellent selectivity.

Citation Download Citation

Matthias Dressler, Günther Helmrich, and Hermann Harde "Photoacoustic HF sensor", Proc. SPIE 7003, Optical Sensors 2008, 70031F (28 April 2008); https://doi.org/10.1117/12.781679

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available