High-rate synthesis of high-quality diamond for IR optics

K. V. Ravi

doi:10.1117/12.187339

28 September 1994 High-rate synthesis of high-quality diamond for IR optics

K. V. Ravi

Proceedings Volume 2286, Window and Dome Technologies and Materials IV; (1994) https://doi.org/10.1117/12.187339
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Diamond IR windows synthesized by low pressure activated vapor deposition techniques have been demonstrated by a number of organizations in recent times. Most of the optical properties of such windows have been shown to be identical to those of natural diamond. However for the practical utility of such windows the economics of manufacture have to be considerably improved. In particular the growth rates for large area windows have to be increased. Among the techniques being developed for the synthesis of diamond films and bulk diamond slabs the combustion flame synthesis process has some distinct advantages in terms of achieving high growth rates and low manufacturing costs attended by high quality. Using this approach optical quality diamond windows have been fabricated at growth rates of 5 to 10 microns per hour. This process also has the flexibility to control the microstructure of diamond to suppress columnar growth of diamond crystals and thus enhance mechanical properties. The current status of this technology is discussed in this paper including a presentation of the microstructural, optical, electrical properties and rain erosion data of combustion synthesized windows and coatings.

Citation Download Citation

K. V. Ravi "High-rate synthesis of high-quality diamond for IR optics", Proc. SPIE 2286, Window and Dome Technologies and Materials IV, (28 September 1994); https://doi.org/10.1117/12.187339

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