Femtosecond and nanosecond nonlinear optical properties of alkyl phthalocyanines studied using Z-scan technique

Kumar, Ravi; Rao, S. Venugopal; Giribabu, Lingamallu; Rao, D. Narayana

doi:10.1016/j.cplett.2007.09.028

Cited by 168 publications

(83 citation statements)

References 31 publications

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“…Whilst the solution studies of these molecules, excited with fs pulses exhibited, strong 3PA in alkyl phthalocyanines (PC4 and PC5) [29], an amalgamation of excited state absorption, 2PA, and 3PA in alkoxy phthalocyanines (PC1 and PC2) [28], and saturable absorption behavior with ps pulses in the asymmetric phthalocyanine (PC3) [31,32] all the films studies obviously pointed to the presence of strong 2PA. This could be explained with the changes in absorption spectra, and thereby the energy level configuration, corresponding to solutions and thin films combined with the aspect of peak intensities used for these studies.…”

Section: Resultsmentioning

confidence: 99%

“…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%

See 2 more Smart Citations

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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show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

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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show abstract

“…The RSA effect is observed due to multiphoton absorption (MPA) effect facilitated by dominance of excited state absorption over the linear absorption coefficient of crystal [22]. The LA-ZTC crystal with RSA feature is a substantial material for photonic and biomedical devices [23].…”

Section: Z-scan Analysismentioning

confidence: 99%

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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“…The origin of RSA effect is assisted by multi photon absorption in excited states [19]. The crystals with origin of RSA phenomenon are highly desirable for biomedical and optical limiting photonic devices [20]. The nonlinear absorption coefficient β of glycine doped potassium thiourea chloride crystal is calculated using equation [16]:…”

Section: Z-scan Analysismentioning

confidence: 99%

Dielectric, etching and Z-scan studies of glycine doped potassium thiourea chloride crystal

Azhar

Shkir

Hussaini³

et al. 2016

Materials Science-Poland

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Glycine doped potassium thiourea chloride (PTC) crystal has been grown by slow solution evaporation technique. The dielectric studies have been employed to examine substantial improvement in dielectric constant and dielectric loss of glycine doped PTC crystal. The etching studies have been performed to investigate the surface quality of this crystal. The Z-scan studies have been carried out at 632.8 nm to explore the third order nonlinear optical nature. The negative nonlinear refraction of glycine doped PTC crystal was found to be of 7.27 × 10 −12 cm 2 /W. The origin of high magnitude of third order nonlinear optical susceptibility and reverse saturable nonlinear absorption have been investigated. The obtained results were explored to discuss the nonlinear optical applications of PTC crystal.

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Femtosecond and nanosecond nonlinear optical properties of alkyl phthalocyanines studied using Z-scan technique

Cited by 168 publications

References 31 publications

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

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

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

Dielectric, etching and Z-scan studies of glycine doped potassium thiourea chloride crystal

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