Open AccessEstimation of excited-state absorption and photobleaching in Fe^2+-doped lithium sodium silicate glass under exposure to high-power nanosecond laser pulses
Author(s) -
Stavros G. Demos,
Paul R. Ehrmann,
Siyao Qiu,
Kathleen I. Schaffers,
Tayyab I. Suratwala
Publication year - 2015
Publication title -
applied optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 197
eISSN - 2155-3165
pISSN - 1559-128X
DOI - 10.1364/ao.54.002762
Subject(s) - materials science , nanosecond , photobleaching , laser , absorption (acoustics) , optics , lithium (medication) , attenuation coefficient , doping , excited state , optoelectronics , analytical chemistry (journal) , fluorescence , atomic physics , chemistry , physics , chromatography , composite material , endocrinology , medicine
Fe-doped lithium sodium silicate glasses codoped with Sn and C to promote the Fe²⁺ redox state are investigated under simultaneous excitation at the first and third harmonics of a nanosecond Nd:YAG laser. The aim is to evaluate critical parameters associated with the potential use of this material as an optical filter that transmits the third harmonic but blocks the fundamental frequency. Estimations of the excited-state absorption coefficient and photobleaching (reduction of absorption at the fundamental) are provided. The results provide insight on the design and expected operational parameters of this type of Fe-doped materials.