NONLINEAR OPTICAL AND OPTICAL LIMITING PROPERTIES OF CHICAGO SKY BLUE 6B DOPED PVA FILM AT 633 NM AND 532 NM STUDIED USING A CONTINUOUS WAVE LASER

2008 ◽  
Vol 22 (16) ◽  
pp. 1589-1597 ◽  
Author(s):  
QUSAY MOHAMMED ALI HASSAN
Keyword(s):  
Nonlinear Optical ◽  
Continuous Wave ◽  
Optical Limiting ◽  
Closed Aperture ◽  
Continuous Wave Laser ◽  
Third Order ◽  
Absorption Properties ◽  
Wave Laser ◽  
Scan Data ◽  
532 Nm

We present our results on nonlinear optical (NLO) of chicago sky blue 6B doped polyvinyl alcohol (PVA) film. This film was studied at 633 nm and 532 nm using a continuous wave laser. We have evaluated the sign and magnitude of the third-order nonlinearity from the closed aperture Z-scan data while the nonlinear absorption properties were assessed using the open aperture data. The chicago sky blue 6B doped PVA film exhibited nonlinear saturated absorption and strong self-defocusing effect. The limiting effect of the sample was studied and the results indicate that the film possesses good characteristic of optical limiting.

scholarly journals Synthesis, Fluorescence and Nonlinear Optical Properties of Phthalocyanine Derivatives in the Continuous-wave and Pulsed Excitation Regimes-=SUP=-*-=/SUP=-

2021 ◽  
Vol 129 (5) ◽  
pp. 626
Author(s):  
Hacene Manaa ◽  
Devrim Attila ◽  
Ayse Gul Gurek ◽  
Sughra Mohamed ◽  
Fadheela A. Alawainati ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Pulsed Laser ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Visible Range ◽  
Third Order ◽  
Nonlinear Properties ◽  
532 Nm

In this work, the photo-physical properties of seven different phthalocyanine derivatives are studied, with a focus on their transparency spectral range. Two compounds among them are recently synthesised. The investigations include synthesis, photoluminescence, absorptive and refractive nonlinear properties, and optical limiting performances. The compounds are found to be emitting interesting broad fluorescence bands in the visible range. The nonlinear optical properties are investigated with the help of Z-scan technique, with both a continuous laser at 488, 514.5 and 632.8 nm, and with a pulsed laser at 532 nm. The sign and the magnitude of the nonlinear refractive index, third-order susceptibility, and nonlinear absorption coefficient have been evaluated in the seven compounds. The optical limiting performance of each compound was also evaluated in the continuous and pulsed laser excitation regimes. Keywords:

scholarly journals Nanomaterials and continuous wave laser-based efficient desorption for atmospheric pressure mass spectrometric imaging of live hippocampal tissue slices

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 8021-8025 ◽  
Author(s):  
Jae Young Kim ◽  
Eun Seok Seo ◽  
Hee Jin Lim ◽  
Hyunmin Kim ◽  
Ji-Won Park ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Continuous Wave ◽  
Mass Spectrometric ◽  
Continuous Wave Laser ◽  
Mass Spectrometric Imaging ◽  
Tissue Slices ◽  
Hippocampal Tissue ◽  
Wave Laser ◽  
532 Nm ◽  
Resolution Mass

Micrometer-resolution mass spectrometric imaging of live hippocampal tissue is achieved with a highly efficient desorption of biomolecules using a 532 nm continuous wave laser and gold nanoparticles or graphene oxide as an energy transporter.

A high-power and low-noise 532-nm continuous-wave laser for quantum gas microscopy

2021 ◽  
Vol 92 (8) ◽  
pp. 083202
Author(s):  
Meng-Da Li ◽  
Yong-Guang Zheng ◽  
Wei-Yong Zhang ◽  
Xuan-Kai Wang ◽  
Bo Xiao ◽  
...  
Keyword(s):  
High Power ◽  
Continuous Wave ◽  
Low Noise ◽  
Continuous Wave Laser ◽  
Quantum Gas ◽  
Wave Laser ◽  
532 Nm

Photophysical and nonlinear optical study of benzothiazole substituted phthalocyanines in solution and thin films

2017 ◽  
Vol 21 (04-06) ◽  
pp. 263-272 ◽  
Author(s):  
Njemuwa Nwaji ◽  
Owolabi M. Bankole ◽  
Jonathan Britton ◽  
Tebello Nyokong
Keyword(s):  
Thin Films ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Optical Study ◽  
Optical Performance ◽  
Third Order ◽  
Limiting Behavior ◽  
532 Nm ◽  
Order Susceptibility

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]

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