Third order nonlinear optical properties and optical limiting behavior of alkali metal complexes of p-nitrophenol

Muthuramalingam, T.; Vinitha, G.; Girisun, T.C. Sabari; Anandan, P.; Ravi, G.

doi:10.1016/j.optlastec.2015.04.023

Cited by 44 publications

(8 citation statements)

References 17 publications

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“…The prefocal maximum to the postfocal minimum configuration corresponds to the signature of negative − n 2 of the grown crystals. This is an indication of self-defocusing behavior which originates from the variation of n 2 with temperature resulting from the absorption of incident radiation . This is an attractive feature for the design of viewing (telescope, gun sights, etc.…”

Section: Resultsmentioning

confidence: 99%

“…This is an indication of self-defocusing behavior which originates from the variation of n 2 with temperature resulting from the absorption of incident radiation. 66 This is an attractive feature for the design of viewing (telescope, gun sights, etc. ), night vision devices 67 and especially for optical switching devices.…”

Section: Table 3 Ftir and Ft-raman Assignments For 2a5npdp Crystalmentioning

confidence: 99%

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Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Vediyappan¹,

Chaudhary

Venkatesh

et al. 2019

Crystal Growth & Design

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We report the growth process and linear and nonlinear optical characterization of high quality improvised semiorganic 2A5NPDP single crystal using the modified SR method for the first time. The major difficulties for the growth of 2A5NPDP single crystal have been resolved with the aid of a temperature lowering method. After optimization of the growth conditions, a transparent 2A5NPDP single crystal was harvested with a size of 85 mm length and 10 mm diameter over a period of 60 days. The growth rate of the modified SR method grown crystal was found to be 10 times higher than that of the conventional slow evaporation solution technique (SEST) grown crystal. The unit cell parameters of the grown crystal were ascertained by the single crystal X-ray diffraction (SXRD) and powder X-ray diffraction (PXRD) techniques. The high crystalline perfection of the crystal was ascertained by using a high-resolution X-ray diffraction (HRXRD) technique. The presence of multifarious functional groups of the 2A5NPDP crystal were confirmed by Fourier transform infrared (FT-IR) and Fourier transform Raman (FT-Raman) spectral analyses. The thermal property was assessed by the thermogravimetric (TG) and differential thermal analysis (DTA). It shows that the grown crystal withstands temperature up to 175 °C. UV–vis–NIR analysis was used to measure the linear optical property while third-order nonlinear optical properties were ascertained using Z-scan and optical limiting (OL) techniques. The optical limiting threshold of conventional method grown crystal is 5.7 mW/cm2, whereas the modified SR method grown crystal is 4.7 mW/cm2. Low value of limiting threshold indicates that the grown crystal has minimum defects. Finally, 800 nm wavelength of 140 fs at 80 MHz repetition rate obtained from a Ti:sapphire oscillator was used for the terahertz (THz) generation between 0.1 and 2.1 THz range. The efficiency of the generated THz signal was measured using another 800 nm wavelength of 40 fs, at 1 kHz repetition rate obtained from a Ti:sapphire amplifier. The generated THz signal is separated out from unconverted 800 nm using Teflon filters, and power is measured using a pyrometer. The maximum conversion efficiency of generated THz signal is on the order of 0.63 × 10–5%.

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Section: Resultsmentioning

confidence: 99%

Section: Table 3 Ftir and Ft-raman Assignments For 2a5npdp Crystalmentioning

confidence: 99%

Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Vediyappan¹,

Chaudhary

Venkatesh

et al. 2019

Crystal Growth & Design

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“…These kind of compounds attracted enormous attention due to their applications in different fields, such as medicine [ 2 ], organic light-emitting diodes (OLED) [ 3 , 4 ], photovoltaic [ 5 ], and photonics and optoelectronics [ 6 , 7 ]. Organometallic compounds exhibit potential as a third order nonlinear material, due to the important charge transfer between the ligands and the metal, as well as the switchable nonlinearity that is related to multiple electronic states of the central metal atom [ 8 , 9 ]. It has been already proven that the abovementioned properties allow for significant values of first molecular hyperpolarizability β [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Selected Organometallic Compounds for Third Order Nonlinear Optical Application

et al. 2019

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In this paper, we present the third harmonic generation response of Znq2 (Bis-(8-hydroxyquinolinato)zinc), Cuq2 (8-Hydroxyquinoline copper(II)), and Alq3 (Tris-(8-hydroxyquinoline)aluminum) organometallic compounds. An experiment was conducted for s and p polarizations of incident beam, using the Maker fringes technique. The third order nonlinear susceptibility χ(3) was estimated using the Kubodera and Kobayashi comparative model, on the grounds that presented compounds exhibit high linear absorption of the generated third harmonic wavelength (355 nm). These complexes were deposited as thin films using the physical vapor deposition (PVD) method. Investigated complexes vary in terms of the coordination center and number of quinoline ligands, which visibly influence their nonlinear response. The global hybrid B3LYP functional with the basis set 6-31G(d) was used in computing the linear and non-linear optical properties. The computed γtot value (8765.36 × 10−36 esu for Cuq2) is superior to that of methylene blue (γ = 32.00 × 10−36 esu). The calculated theoretical values were found to be in good agreement with the experimental results.

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“…Figure 4 shows the different spot size of the beam profile, from which it can be inferred that the spot size varies accord ing to the position of the sample. A spatial variation in the refractive index is produced when the sample interacts with the Gaussian beam, which results in the distortion of the propagation beam because of the thermal lens behavior in the sample [30]. The magnitude and sign of the nonlinear refrac tive index and nonlinear absorption coefficient are determined using the closed aperture Zscan and open aperture Zscan techniques.…”

Section: Z-scanmentioning

confidence: 99%

Investigation of optical limiting and third-order optical nonlinear properties of 2-Nitroaniline by Z-scan and f -scan techniques

et al. 2019

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The nonlinear optical properties of 2Nitroaniline, which is known to be a superior nonlinear optical material, have been investigated. The optical properties, such as absorption coefficients, are analyzed with UV visible spectroscopy analyses. The thirdorder nonlinear optical properties of the sample are analyzed with Zscan, Eclipse Zscan and f scan techniques. The nonlinear absorption coefficient, nonlinear refractive index and thirdorder susceptibility are examined using open aperture and closed aperture Zscan methods. The nanoscale sensitive variations in the nonlinear optical properties are observed with the Eclipse Zscan method. The thirdorder optical nonlinearities occurring in the nanoscale range are also analyzed using the f scan method and compared with the results obtained from the Zscan measurement. The optical limiting characteristics of the sample have also been examined for its lowpower optical limiting applications.

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Third order nonlinear optical properties and optical limiting behavior of alkali metal complexes of p-nitrophenol

Cited by 44 publications

References 17 publications

Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Selected Organometallic Compounds for Third Order Nonlinear Optical Application

Investigation of optical limiting and third-order optical nonlinear properties of 2-Nitroaniline by Z-scan and f -scan techniques

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