Optical glasses with high NIR transmission

Wenli Xu; Walter Seifert

doi:10.1117/12.464255

30 January 2003 Optical glasses with high NIR transmission

Wenli Xu, Walter Seifert

Proceedings Volume 4842, Specialized Optical Developments in Astronomy; (2003) https://doi.org/10.1117/12.464255
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

For dioptic instruments working in the near-infrared (NIR), the choice of materials for lenses is mostly limited to special glasses or crystals. Most commonly used are CaF₂, BaF₂, infrared fused silica, ZnS and ZnSe. Those materials can in general not provide good chromatic correction for fast systems. Moreover, the high index materials, as well as infrared glass like Schott IRG, are quite limited with regard to availability in larger sizes and thicknesses and/or optical quality. An investigation was made for optical glasses from the Schott and Ohara catalogues with high transmission up to a wavelength of 2.4 μm. For the most promising materials, the transmission from λ0.35μm to λ3.0μm, was measured in the lab with high spectral resolution. A systematic analysis of combinations of those optical glasses with the infrared materials was performed and the combinations with extremely good chromatic correction in the NIR are presented. There were several combinations found which are well corrected even from λ0.55μm to λ2.5μm, as needed for some designs of adaptive optics systems.

Citation Download Citation

Wenli Xu and Walter Seifert "Optical glasses with high NIR transmission", Proc. SPIE 4842, Specialized Optical Developments in Astronomy, (30 January 2003); https://doi.org/10.1117/12.464255

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
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Glasses

Near infrared

Zinc

Infrared materials

Lenses

Refractive index

Cameras

Show All Keywords

Keywords/Phrases

Search In:

Publication Years