Shift-free narrowband filters for the UV-B region

Hein Uhlig; Uwe B. Schallenberg; Norbert Kaiser

doi:10.1117/12.246821

19 August 1996 Shift-free narrowband filters for the UV-B region

Hein Uhlig, Uwe B. Schallenberg, Norbert Kaiser

Proceedings Volume 2776, Developments in Optical Component Coatings; (1996) https://doi.org/10.1117/12.246821
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

Monitoring of stratospherical ozone depletion by filter radiometers calls for narrowband filters with outstanding parameters. At filter wavelengths down to 300 nm narrow bandwidth, high peak transmittance together with high out- of-band blocking especially at longer wavelength are demanded. Furthermore, filters have to be completely free of wavelength shift caused by humidity. Conventional interference filters suffer from such shift because of the water sorption of the evaporated layers. By using plasma ion assisted deposition of zirconia and silica layers we succeeded in manufacturing blocked two-cavity filters with full width at half maximum of 1.7 nm and peak transmittance of 17 percent to NIR optical density is at least 6. There was no decrease in wavelength of such filters by changing relative humidity from 100 percent to 0 percent. Corresponding conventional filters shifted 4.5 nm under the same conditions. The filter performance achieved allows use for the development of sensitive and specific instrumentation for environmental, climate, and meteorological research.

Citation Download Citation

Hein Uhlig, Uwe B. Schallenberg, and Norbert Kaiser "Shift-free narrowband filters for the UV-B region", Proc. SPIE 2776, Developments in Optical Component Coatings, (19 August 1996); https://doi.org/10.1117/12.246821

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical filters

Humidity

Ions

Transmittance

Plasma

Ozone

Absorbance

Show All Keywords

Keywords/Phrases

Search In:

Publication Years