Structural, Nonlinear Absorption, and Optical Limiting Properties of a New Organic Crystal 3-(3-fluorophenyl)-1-[4-(methylsulfanyl) phenyl] prop-2-en-1-one

Raghavendra, S.; Dileep, C. S.; Dharmaprakash, S. M.

doi:10.1080/15421406.2014.954323

Cited by 18 publications

(3 citation statements)

References 20 publications

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“…300 – 302 all exhibited TPA. Also, methylsulfanyl substituted chalcones 303 , 304 , and 305 (Chart ) were investigated using Nd:YAG laser at 532 nm. The influence of this functional group consisted of the improvement of the NLO parameters in all three cases.…”

Section: Organic Materialsmentioning

confidence: 99%

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

2016

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The control of luminous radiation has extremely important implications for modern and future technologies as well as in medicine. In this Review, we detail chemical structures and their relevant photophysical features for various groups of materials, including organic dyes such as metalloporphyrins and metallophthalocyanines (and derivatives), other common organic materials, mixed metal complexes and clusters, fullerenes, dendrimeric nanocomposites, polymeric materials (organic and/or inorganic), inorganic semiconductors, and other nanoscopic materials, utilized or potentially useful for the realization of devices able to filter in a smart way an external radiation. The concept of smart is referred to the characteristic of those materials that are capable to filter the radiation in a dynamic way without the need of an ancillary system for the activation of the required transmission change. In particular, this Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting. All known mechanisms of optical limiting have been analyzed and discussed for the different types of materials.

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Section: Organic Materialsmentioning

confidence: 99%

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

2016

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“…The results have encouraged the researchers to use the organometallic in optical devices, such as human eyes and optical sensors protection from high power laser pulses. [1][2][3][4] In organometallic compounds, the d electrons of the transition metal would interact with the organic ligand (π-electron). In such metalligand system, electrons are free to move and the nonlinear optical (NLO) phenomena come from the interaction between high intensity light and electrons within the molecular units, getting large nonlinear optical effects.…”

Section: Introductionmentioning

confidence: 99%

Optical nonlinearities of tetracarbonyl-chromium triphenyl phosphine complex

et al. 2017

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The new tetracarbonyl -chromium-triphenyl phosphine complex was synthesized and characterized using ultraviolet (UV)-visible, Fourier transform infrared (FTIR), and nuclear magnetic resonance (NMR) techniques. The characterization results confirm the molecular structure of the new complex. The z-scan measurements were done by diode laser [continuous wave (CW)] to estimate the nonlinear optical parameter (χ 3 ). The results led to calculate three parameters: the groundstate cross sections (σ g ), the excited-state cross sections (σ ex ), and thermo-optic coefficient of the new complex. This study indicated that our complex is a suitable for photonic applications.

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“…The variation of the nonlinear absorption of a solid film is, in general, are highly advantageous in on-chip optoelectrical application [11]. NLO materials have gained incredible attention for their well-known applications in optical limiting, especially for sensor and eye protection [12][13][14]. Optical limiting (OL) is where the medium's normalised transmittance decreases with an increase in the laser beam's input fluence [15].…”

Section: Introductionmentioning

confidence: 99%

Investigation on optical switching behaviour of regenerated and non-regenerated silk by nanosecond Z-scan technique

Gowtham¹,

Urs²,

Raghavendra³

et al. 2021

Phys. Scr.

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The nonlinear optical behaviour of silk, a natural fibre, is investigated in this study. We have considered silk in the cocoon, fibre and film forms of bivoltine and multivoltine breeds. The nonlinear absorption and optical limiting studies were performed using the open aperture Z-scan technique at 1064nm. Interestingly, silk in cocoon and fibre form possess saturable absorption (SA), whereas silk in the film form exhibits reverse saturable absorption (RSA). This shift is attributed to the removal of sericin during the regeneration of silk into a film. Further, silk films exhibit optical limiting behaviour, whose limiting thresholds are in the order of 1012 W/cm2. Functional data analysis (FDA), a statistical approach, is employed to draw correlations amongst physical parameters. FDA offers good insight into the dependencies between silk varieties and their optical parameters. This helps in identifying the sample possessing the best properties.

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Structural, Nonlinear Absorption, and Optical Limiting Properties of a New Organic Crystal 3-(3-fluorophenyl)-1-[4-(methylsulfanyl) phenyl] prop-2-en-1-one

Cited by 18 publications

References 20 publications

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

Optical nonlinearities of tetracarbonyl-chromium triphenyl phosphine complex

Investigation on optical switching behaviour of regenerated and non-regenerated silk by nanosecond Z-scan technique

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