Picosecond nonlinear optical studies of unsymmetrical alkyl and alkoxy phthalocyanines

Anusha, P. T.; Reeta, P. Silviya; Giribabu, Lingamallu; Tewari, Surya P.; Rao, S. Venugopal

doi:10.1016/j.matlet.2010.06.004

Cited by 48 publications

(40 citation statements)

References 26 publications

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“…The figure of merit (T = βλ/n 2 ) of LA-ZTC crystal was found to be 21.86. This evidences the dominance of NLR over NLA which is a vital factor for designing photonic devices [27]. The promising TONLO parameters confirm the high suitability of LA-ZTC crystal for laser and photonic devices.…”

Section: Z-scan Analysismentioning

confidence: 56%

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

Shkir

Hussaini²,

Shirsat

et al. 2016

Materials Science-Poland

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The present study is focused to explore the photonic device applications of L -arginine doped ZTC (LA-ZTC) crystals using nonlinear optical (NLO) and dielectric studies. The LA-ZTC crystals have been grown by slow evaporation solution technique. The chemical composition and surface of LA-ZTC crystal have been analyzed by means of energy dispersive spectroscopy (EDS) and surface scanning electron microscopy (SEM) techniques. The Vicker's microhardness study has been carried out to determine the hardness, work hardening index, yield strength and elastic stiffness of LA-ZTC crystal. The enhanced SHG efficiency of LA-ZTC crystal has been ascertained using the Kurtz-Perry powder SHG test. The closed-and-open aperture Z-scan technique has been employed to confirm the third order nonlinear optical nature of LA-ZTC crystal. The Z-scan transmittance data has been utilized to calculate the superior cubic susceptibility, nonlinear refractive index, nonlinear absorption coefficient and figure of merit of LA-ZTC crystal. The behavior of dielectric constant and dielectric loss of LA-ZTC crystal at different temperatures has been investigated using the dielectric analysis.

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Section: Z-scan Analysismentioning

confidence: 56%

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

Shkir

Hussaini²,

Shirsat

et al. 2016

Materials Science-Poland

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show abstract

“…The complete details of synthesis of these mole- cules, their molecular structure, and their detailed absorption spectra are reported in our earlier publications [28][29][30][31][32][33]. All the molecules were purified prior to thin film fabrication achieved through spin coating.…”

Section: Resultsmentioning

confidence: 99%

“…We have recently reported the NLO studies of novel phthalocyanines using continuous wave (cw), nanosecond (ns), picosecond (ps), and femtosecond (fs) laser pulses [25][26][27][28][29][30][31][32][33]. Our recent efforts have been towards understanding the nonlinearities in all the time domains, albeit in solution form.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast Nonlinear Optical and Optical Limiting Properties of Phthalocyanine Thin Films Studied Using Z-Scan

Soma¹,

Anusha²,

Turaga³

et al. 2011

MSA

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“…The beam waist (2ω 0 ) at focal plane was estimated to be ~60 μm (FW1/ e 2 M) with a corresponding Rayleigh range (Zr) of 3.5 ± 0.4 mm ensuring the validity of thin sample approximation. Complete details of the experimental set up can be found in our earlier publications [20][21][22][23][24][25][26]. Figure 1 illustrates the linear absorption spectra of DNA1 film and R6GPVA film.…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…Figures 3(a)-(c) demonstrate the typical closed aperture Z-scan curves obtained for DNA1, DNA2, and R6GPVA, respectively, recorded with a peak intensity of ~110 GW/cm 2 . The data were fitted using standard equations [20][21][22][23][24][25][26]. It is apparent that all the samples demonstrated negative nonlinearity as indicated by the peak-valley signature.…”

Section: Experimental Techniquesmentioning

confidence: 99%

Nonlinear Optical Studies of DNA Doped Rhodamine 6G-PVA Films Using Picosecond Pulses

Sreeja¹,

Nityaja²,

Swain³

et al. 2012

OPJ

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We present our results from the measurements of third-order optical nonlinearity in DNA doped Rhodamine 6G/PVA films achieved through Z-scan measurements using ~2 picosecond (ps) pulses at a wavelength of 800 nm. The films demonstrated negative nonlinear refractive index (n 2 ) with magnitudes of (0.065 -2.89) × 10 -14 cm 2 /W with varying concentration of DNA. Open aperture data demonstrated strong two-photon absorption with a magnitude of ~1.6 cm/GW for films doped with 2 wt% of DNA. The recovery time of excited state population, retrieved from the degenerate pump-probe experimental data, was <4 ps. These data suggests that DNA is promising material for applications such as optical switching.

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Picosecond nonlinear optical studies of unsymmetrical alkyl and alkoxy phthalocyanines

Cited by 48 publications

References 26 publications

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

Ultrafast Nonlinear Optical and Optical Limiting Properties of Phthalocyanine Thin Films Studied Using Z-Scan

Nonlinear Optical Studies of DNA Doped Rhodamine 6G-PVA Films Using Picosecond Pulses

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