Infrared Transmitting Glass Ceramics A Review

The key factor for controlling the glass to crystal transformation in an infrared transmitting glass ceramic is in the selection of a suitable glass composition which must have the two following specificities.

Infrared transmitting glass ceramics a review.

Depending on the wavelengths being used a number of glass materials can be considered. Both on the thermal and mechanical side as well as on the width of the optical window with an extension of the transparency towards the long wavelength region to satisfy the requirements of space applications. Applications for infrared ir transmitting glass ceramics have included far infrared fibers 21 scintillators 22 24 nonlinear optical devices 25 26 and bulk optics. The demand for infrared materials which exhibit higher performance is still growing.

Known optical and physical property data was summarized for many ternary sulfides as well as their constituent binary sulfides. Some examples of infrared transmitting glasses. A review infrared transmitting glass ceramics. Glasses as well as glass based ceramics offer the advantage of unique rheological properties.

A large body of literature was reviewed with the aim of identifying binary and ternary systems for producing long wave infrared transmitting glass ceramics for window applications. Cs based crystals have been generated inside the glass matrix and the crystal size is controlled to be less than 100 nm in order to keep the transparency of the composite materials. First when heated above t g this glass has to precipitate nanosize particles and avoids a fast growth of each individual nano crystal. Cunming liu gao tang lan luo wei chen phase separation inducing controlled crystallization of gese2 ga2se3 csi glasses for fabricating infrared transmitting glass ceramics journal of the american ceramic society 10 1111 j 1551 2916 2008 02832 x 92 1 245 248 2008.

Qiao amy 2013 06 04 00 00 00 a large body of literature was reviewed with the aim of identifying binary and ternary systems for producing long wave infrared transmitting glass ceramics for window applications. 27 28 table 1. A review mccloy john s.