Nonlinear optical and optical limiting properties of phthalocyanines in solution and thin films of PMMA at 633 nm studied using a cw laser

2007 ◽  
Vol 61 (22) ◽  
pp. 4426-4431 ◽  
Author(s):  
S.J. Mathews ◽  
S. Chaitanya Kumar ◽  
L. Giribabu ◽  
S. Venugopal Rao
2017 ◽  
Vol 21 (04-06) ◽  
pp. 263-272 ◽  
Author(s):  
Njemuwa Nwaji ◽  
Owolabi M. Bankole ◽  
Jonathan Britton ◽  
Tebello Nyokong

In this study, the photophysical, nonlinear absorption and nonlinear optical limiting properties of zinc and gallium phthalocyanine complexes: tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato]zinc(II) (3), tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato] gallium(III) chloride (4), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] zinc(II) (5), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] gallium(III) chloride (6), were investigated both in solution and when embedded in polystyrene thin films using 532 nm laser excitation at 10 ns pulses. It was also observed that complexes that have higher triplet state absorption also possessed enhanced nonlinear and optical limiting behavior. Superior optical performance was observed when the complexes were embedded in thin films compared to when they are in solution. Complex 6 in thin films gave the highest imaginary third-order susceptibility (I[Formula: see text][X[Formula: see text]]) and hyperpolarizability ([Formula: see text] at 4.61 × 10[Formula: see text] esu and 3.44 × 10[Formula: see text] esu, respectively, with a low I[Formula: see text] value of 0.06 J.cm[Formula: see text]


Polyhedron ◽  
2015 ◽  
Vol 85 ◽  
pp. 347-354 ◽  
Author(s):  
Kutloano E. Sekhosana ◽  
Edith Amuhaya ◽  
Tebello Nyokong

2000 ◽  
Vol 09 (01) ◽  
pp. 117-125 ◽  
Author(s):  
BAOLONG YU ◽  
YUZONG GU ◽  
YANLI MAO ◽  
CONGSHAN ZHU ◽  
FUXI GAN

The thermooptic coefficient dn/dT and the thermal-induced refractive index n2 of PbS nanoparticles in organosol were measured. The optical limiting properties of PbS nanoparticles were studied under continuous wave (cw) laser illumination. The obtained results were analyzed and discussed.


2013 ◽  
Vol 35 (3) ◽  
pp. 431-439 ◽  
Author(s):  
K.K. Nagaraja ◽  
S. Pramodini ◽  
A. Santhosh Kumar ◽  
H.S. Nagaraja ◽  
P. Poornesh ◽  
...  

2017 ◽  
Vol 5 (46) ◽  
pp. 12211-12220 ◽  
Author(s):  
Partha P. Dey ◽  
Alika Khare

PLD nc-Si films exhibited deposition temperature-dependent large RSA and positive NLR (χ(3) ∼ 10−1 esu) and optical limiting behavior.


2011 ◽  
Vol 02 (05) ◽  
pp. 299-306 ◽  
Author(s):  
Soma Venugopal Rao ◽  
Puliparambil Thilakan Anusha ◽  
Turaga Shuvan Prashant ◽  
Debasis Swain ◽  
Surya P. Tewari

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