Molecular engineering and photostability of laser dyes within sol-gel hosts

Tayyab I. Suratwala; Kevin Davidson; Zack Gardlund; Donald R. Uhlmann; Sandra I. Bonilla; Nasser Peyghambarian

doi:10.1117/12.269991

31 March 1997 Molecular engineering and photostability of laser dyes within sol-gel hosts

Tayyab I. Suratwala, Kevin Davidson, Zack Gardlund, Donald R. Uhlmann, Sandra I. Bonilla, Nasser Peyghambarian

Proceedings Volume 2986, Solid State Lasers VI; (1997) https://doi.org/10.1117/12.269991
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

The use of solid-state dye laser for commercial applications has been limited largely by the poor photostability of the gain medium. Techniques are examined to improve the photostability of Coumarin and Pyrromethene-BF₂ 567 (PM- 567) laser dyes within xerogel and Polyceram hosts synthesized by sol-gel processing. The photochemical mechanisms by which laser dyes degrade are discussed and determined specifically for PM-567. PM-567 was determined to degrade both by photo-oxidation and acid degradation. Techniques for improving photostability are described from a molecular engineering perspective. These techniques include: covalently attaching the laser dye to the host; controlling the chemical environment of the dye; increasing dye caging by increasing the SiO₂ content; removing porosity from the host; and incorporating additives such as hindered amine light stabilizers to minimize photodegradation.

Citation Download Citation

Tayyab I. Suratwala, Kevin Davidson, Zack Gardlund, Donald R. Uhlmann, Sandra I. Bonilla, and Nasser Peyghambarian "Molecular engineering and photostability of laser dyes within sol-gel hosts", Proc. SPIE 2986, Solid State Lasers VI, (31 March 1997); https://doi.org/10.1117/12.269991

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