A5103233919- Magneto-Optical Properties and Applications
- Calibration and Measurement Techniques
- Orbital Angular Momentum in Optics
- Photoreceptor and optogenetics research
- Gold and Silver Nanoparticles Synthesis and Applications
- Near-Field Optical Microscopy
- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Magnetic Properties and Synthesis of Ferrites
- Ocular and Laser Science Research
- Nonlinear Optical Materials Studies
- Glass properties and applications
- Infrared Target Detection Methodologies
- Magnetic properties of thin films
- Atmospheric Ozone and Climate
- Advanced Optical Sensing Technologies
- Ion-surface interactions and analysis
- Quantum optics and atomic interactions
- High-pressure geophysics and materials
- Microfluidic and Bio-sensing Technologies
- Impact of Light on Environment and Health
- Molecular Communication and Nanonetworks
- CCD and CMOS Imaging Sensors
- Radiation Detection and Scintillator Technologies
- Advanced Sensor Technologies Research
Council of Scientific and Industrial Research
2013-2024
CSIR National Physical Laboratory of India
2008-2024
Academy of Scientific and Innovative Research
2016-2024
Sarojini Naidu Medical College
2014-2018
Sawai ManSingh Medical College and Hospital
2017
Saurashtra University
2005-2016
Poornima University
2016
The University of Sydney
2014
Dayalbagh Educational Institute
2004-2012
National Physical Laboratory
2010
The structural, electrical and dielectric properties of the spinel ferrite system ZnxCo1−xFeAlO4 (x = 0.2–0.5) have been studied by means various experimental techniques. Polycrystalline samples this series prepared double sintering ceramic method. structural parameters such as lattice constant, x-ray density, pore fraction, cation distribution, interionic distances polaron radius determined for better understanding behaviour. compositional thermal variations dc resistivity, thermoelectric...
Abstract The applicability of diode-lasers in automobile headlights is an advanced innovation for the illumination industry due to extraordinary properties laser light over conventional sources, such as high brightness, wide colour gamut, directionality, low energy consumptions and long lifetime. Lasers are highly coherent nature, so they encounter problem unwanted speckles spurious fringes always require a level opto-thermal engineering along with speckle reduction mechanisms lumen...
Perfect vortex beam (PVB) has emerged as a promising candidate in the field of optical communication, which is currently limited due to its realization only at focal depth Fourier lens. The present letter reports devising unique technique for propagation PVB beyond this point and been verified experimentally, inside laboratory, up distance 5 m. properties PVBs, observed focus lens, were well preserved propagated beams. This proposed approach ensures preserving invariance annular radius...
Low-power all-optical switching with pharaonis phoborhodopsin (ppR) protein is demonstrated based on nonlinear excited-state absorption at different wavelengths. A modulating pulsed 532-nm laser beam shown to switch the transmission of a continuous-wave signal light at: 1) 390 nm; 2) 500 3) 560 and 4) 600 nm, respectively. Simulations rate equation approach considering all seven states in ppR photocycle are good agreement experimental results. It that characteristics respectively, can...
The effect of Fe 3+ substitution on the elastic properties yttrium iron garnet (Y 3− x 5+ O 12 , =0.0, 0.1, 0.3 and 0.5) was studied by means x-ray diffraction, scanning electron microscopy ultrasonic pulse transmission technique at 300 K. Elastic moduli specimens were computed these are corrected to void-free state employing different models. Contrary expectation, magnitude constants is found decrease with increasing substitution. lowering stiffness mainly due residual stress-induced...
Mitoxantrone (1,4-dihydroxy-5,8-bis[[2-[(2-hydroxyethyl)amino]ethyl]amino]-9,10-anthracenedione) is a synthetically designed antineoplastic agent and structurally similar to classical anthracyclines. It widely used as potent chemotherapeutic component against various kinds of cancer possesses lesser cardio-toxic effects with respect naturally occurring In the present study, we have investigated binding features mitoxantrone-tRNA complexation at physiological pH using attenuated total...
All-optical two input parallel logic gates with bacteriorhodopsin (BR) protein have been designed based on nonlinear intensity-induced excited-state absorption. Amplitude modulation of a continuous wave (CW) probe laser beam transmission at 640 nm corresponding to the peak absorption O intermediate state through BR, by modulating CW pump 570 initial BR has analyzed considering all six states in its photocycle using rate equation approach. The characteristics shown exhibit dip, which is...
In this study, we describe the variation of real (μ') and imaginary (μ'') parts complex permeability for polycrystalline samples garnet system: Y3+xFe5−xO12, x = 0.0, 0.2, 0.4 0.6, over ranges frequency (f 100 Hz–13 MHz) temperature (T 300–700 K). It is found that higher concentration Y3+ substitution (x ⩾ 0.4) leads to formation an unwanted secondary orthoferrite phase reduces grain size. The dispersion spectra system sintered at 1200 1500 °C are resonance type relaxed type, respectively....
Abstract A perfect vortex beam (PVB) has emerged as a potential candidate for optical communication its intensity profile remains invariant different orbital angular momenta being carried by the beam. The present study proposes simple technique to enhance data handling capacity of through spatial multiplexing. variation ring radius PVB under Fourier transformation, with focal lengths, been used generate multiple PVBs annular radii, and then combined into single produce concentric (CPVB)....
All-optical light modulation in pharaonis phoborhodopsin (ppR) protein has been analyzed considering its ppRO state dynamics based on nonlinear intensity-induced excited-state absorption. Amplitude of a cw probe laser beam transmission at 560nm corresponding to the peak absorption intermediate through ppR, by modulating pump 498nm initial ppR all six states photocylce using rate equation approach. The characteristics have shown exhibit dip relatively lower intensity values compared...
We propose a unique method for producing nondiverging optical array and elliptical hollow beam in controlled manner using aberration patterns generated from oblique illumination of axicon. The arrays with propagation invariance property are persisted short ranges the focal depth, whereas diverging constant number bright spots is produced beyond bottle beam. measured variation geometrical parameters obliquely illuminated axicon setup has facilitated precise control on dimension shape beam,...