Title :
Optimized dynamic range cascaded optical power limiter based on nickel complex dye (BDN) encapsulated in PMMA
Author :
Mohan, D. ; Purmima ; Dhar, Rajdeep
Author_Institution :
Dept. of Appl. Phys., GJUS&T, Hisar, India
Abstract :
A novel optical limiter cascaded configuration has been characterized using nanosecond pulsed radiation of a single mode, Q-switched Nd: YAG laser operating at 532nm. Nickel complex dye bis (4-dimethylaminodithiobenzyl)-nickel (BDN) has been entrapped in PMMA to form polymeric solid-state optical limiter. The optical limiting mechanism arises due to laser induced nonlinear absorption and self-action effects. Optical limiting threshold as well as dynamic range has been reported. The dynamic range optimization has been accomplished using cascaded geometry. A nearly two fold enhancement in dynamic range has been reported.
Keywords :
dyes; encapsulation; laser materials processing; nickel compounds; optical limiters; optical polymers; optical saturable absorption; bis (4-dimethylaminodithiobenzyl)-nickel; cascaded geometry; encapsulated PMMA; laser optimized induced nonlinear absorption; nanosecond pulsed radiation; nickel complex dye; optical limiting threshold; optimized dynamic range cascaded optical power limiter; polymeric solid-state optical limiter; self-action effects; single-mode Q-switched laser; wavelength 532 nm; Dynamic range; Limiting; Nonlinear optics; Optical distortion; Optical pulses; Optical refraction; Optical sensors; BDN; Dynamic range; Limiting threshold; Nonlinear absorption; Optical limiter;
Conference_Titel :
Defense Science Research Conference and Expo (DSR), 2011
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9276-3
DOI :
10.1109/DSR.2011.6026849
