Improved open-path multireflection cell for the measurement of NO2 and NO3

Dominique Ritz; Michael Hausmann; Ulrich Platt

doi:10.1117/12.140211

12 February 1993 An improved open path multi-reflection cell for the measurement of NO₂ and NO₃

Dominique Ritz, Michael Hausmann, Ulrich Platt

Proceedings Volume 1715, Optical Methods in Atmospheric Chemistry; (1993) https://doi.org/10.1117/12.140211
Event: Environmental Sensing '92, 1992, Berlin, Germany

Abstract

Multireflection cells based on the development by White (1942, 1976) are becoming increasingly popular for studying the chemical composition of the ambient atmosphere by long path UV-visible absorption spectroscopy (DOAS). This is partly due to the special property of the design to eliminate negative effects of vibration and atmospheric fluctuations on the optical quality of the cell. The main parameters limiting the number of reflections (and thus achievable optical length) as well as the vibration tolerance are the size of the main mirror and the number of loci that can be fitted on its surface. Also limiting can be the total reflectivity of the mirrors. Here we present a design variant simplifying the optical alignment of the cell by replacing two pairs of about 90-deg mirrors by quartz prisms and adding a third prism to further increase the stability of the system by a factor of two. An application of a practical design based on those principles to the simultaneous measurement of NO2, NO3, and oxygen dimers (O4) is presented.

Citation Download Citation

Dominique Ritz, Michael Hausmann, and Ulrich Platt "An improved open path multi-reflection cell for the measurement of NO₂ and NO₃", Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); https://doi.org/10.1117/12.140211

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