Prof. Surya Prakash Tewari Profile

Prof. Surya Prakash Tewari

Professor, School of Physics at Univ of Hyderabad

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Author

Publications (20)

Proceedings Article | 29 May 2013 Paper

Femtosecond LIBS studies of nitropyrazoles

E. Nageswara Rao, Sreedhar Sunku, Surya Tewari, G. Manoj Kumar, S. Venugopal Rao

Proceedings Volume 8710, 87101O (2013) https://doi.org/10.1117/12.2015760

KEYWORDS: Argon, Laser induced breakdown spectroscopy, Femtosecond phenomena, Carbon, Molecules, Nitrogen, Plasma, Chemical species, Explosives, Atmospheric plasma

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Proceedings Article | 29 May 2013 Paper

Discrimination methodologies using femtosecond LIBS and correlation techniques

Sreedhar Sunku, E. Nageswara Rao, G. Manoj Kumar, Surya P. Tewari, S. Venugopal Rao

Proceedings Volume 8726, 87260H (2013) https://doi.org/10.1117/12.2015749

KEYWORDS: Laser induced breakdown spectroscopy, Femtosecond phenomena, Data modeling, Plasma, Explosives, Spectroscopy, Statistical modeling, Performance modeling, 3D modeling, Laser ablation

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Proceedings Article | 29 May 2013 Paper

Investigation of molecular and elemental species dynamics in NTO, TNT, and ANTA using femtosecond LIBS technique

E. Nageswara Rao, Sreedhar Sunku, Surya P. Tewari, G. Manoj Kumar, S. Venugopal Rao

Proceedings Volume 8710, 871012 (2013) https://doi.org/10.1117/12.2015685

KEYWORDS: Nitrogen, Argon, Atmospheric plasma, Plasma, Laser induced breakdown spectroscopy, Molecules, Carbon, Femtosecond phenomena, Chemical species, Chemical reactions

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Proceedings Article | 16 May 2012 Paper

Filamentation characteristics of focused fs pulses in atmosphere

S. Sreeja, V. Rakesh Kumar, Ch. Leela, P. Radhakrishnan, Surya Tewari, S. Venugopal Rao, P. Prem Kiran

Proceedings Volume 8434, 84340U (2012) https://doi.org/10.1117/12.921633

KEYWORDS: Atmospheric propagation, Femtosecond phenomena, Sodium, Laser beam propagation, Polarization, Atmospheric sciences, Nonlinear optics, Diffraction, LIDAR, Pulsed laser operation

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Proceedings Article | 16 May 2012 Paper

Detection and analysis of low-frequency electromagnetic emissions from ns laser induced breakdown of air

L. Vinoth Kumar, Ch. Leela, E. Manikanta, Surya Tewari, P. Prem Kiran

Proceedings Volume 8434, 84340V (2012) https://doi.org/10.1117/12.922179

KEYWORDS: Antennas, Plasma, Laser energy, Polarization, Electromagnetism, Atmospheric plasma, Laser induced damage, Spectrum analysis, Pulsed laser operation, Curium

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Proceedings Article | 11 May 2012 Paper

Dynamic response of metals and alloys to laser-induced shock waves

E. Manikanta, P. Venkateshwarlu, S. Sai Shiva, V. Rakesh Kumar, Ch. Leela, Surya Tewari, G. Manoj Kumar, P. Prem Kiran

Proceedings Volume 8433, 84331Z (2012) https://doi.org/10.1117/12.922212

KEYWORDS: Laser energy, Acoustics, Aluminum, Copper, Transducers, Atmospheric propagation, Metals, Wave propagation, Velocity measurements, Plasma

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Proceedings Article | 11 May 2012 Paper

Laser-induced shock waves from structured surfaces

Ch. Leela, V. Rakesh Kumar, Surya Tewari, P. Prem Kiran

Proceedings Volume 8433, 84331U (2012) https://doi.org/10.1117/12.921626

KEYWORDS: Plasma, Pulsed laser operation, Spherical lenses, Atmospheric propagation, Laser applications, Metals, Laser cutting, Wave propagation, Cameras, Temperature metrology

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Proceedings Article | 11 May 2012 Paper

Effect of lens tilt on SCE and filamentation characteristics of femtosecond pulses in air

S. Sreeja, T. Shuvan Prashant, Ch. Leela, V. Rakesh Kumar, Surya Tewari, S. Venugopal Rao, P. Prem Kiran

Proceedings Volume 8434, 84340T (2012) https://doi.org/10.1117/12.921634

KEYWORDS: Femtosecond phenomena, Atmospheric propagation, Monochromatic aberrations, Atmospheric laser remote sensing, Plasma, Wave propagation, Neodymium, Laser vision correction, Glasses, Nonlinear optics

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Proceedings Article | 21 February 2012 Paper

Femtosecond and picosecond nonlinear optical studies of Corroles

Syed Hamad, G. Krishna Podagatlapalli, L. Giribabu, Surya Tewari, S. Venugopal Rao

Proceedings Volume 8258, 82581C (2012) https://doi.org/10.1117/12.907172

KEYWORDS: Absorption, Picosecond phenomena, Nonlinear optics, Femtosecond phenomena, Molecules, Saturable absorption, Transmittance, Optical limiting, System on a chip, Thin films

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Proceedings Article | 16 February 2012 Paper

Femtosecond and picosecond ablation of aluminum for synthesis of nanoparticles and nanostructures and their optical characterization

Syed Hamad, G. Krishna Podagatlapalli, S. Sreedhar, Surya Tewari, S. Venugopal Rao

Proceedings Volume 8245, 82450L (2012) https://doi.org/10.1117/12.906962

KEYWORDS: Aluminum, Nanoparticles, Liquids, Laser ablation, Picosecond phenomena, Nanostructures, Metals, Water, Femtosecond phenomena, Nanolithography

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Proceedings Article | 7 February 2012 Paper

Characterization of the longitudinal Gouy phase branches in cascaded optical systems

K. Sudha Nirmala, Surya Tewari

Proceedings Volume 8236, 823614 (2012) https://doi.org/10.1117/12.908084

KEYWORDS: Laser optics, Quantum cascade lasers, Random lasers, Gaussian beams, Mode locking, Phase shifts, Roads, Gyroscopes, Mirrors, Physics

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Proceedings Article | 30 January 2012 Paper

Supercontinuum emission from water using fs pulses in the external tight focusing limit

S. Sreeja, S. Venugopal Rao, P. Radhakrishnan, Surya Tewari, P. Prem Kiran

Proceedings Volume 8247, 824718 (2012) https://doi.org/10.1117/12.907278

KEYWORDS: Water, Femtosecond phenomena, Ultrafast phenomena, Wave plates, Plasma, Ionization, Pulsed laser operation, Glasses, Spectroscopy, Gases

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Proceedings Article | 24 August 2011 Paper

Laser induced breakdown spectroscopy of high energy materials using nanosecond, picosecond, and femtosecond pulses: challenges and opportunities

Venugopal Rao Soma, Sreedhar S., Ashwin Kumar M., Prem Kiran P., Surya P. Tewari, Manoj Kumar Gundawar

Proceedings Volume 8173, 81731A (2011) https://doi.org/10.1117/12.897821

KEYWORDS: Laser induced breakdown spectroscopy, Picosecond phenomena, Femtosecond phenomena, Sodium, Spectroscopy, Explosives, Molecules, Ultrafast phenomena, Iron, Magnesium

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Proceedings Article | 23 August 2011 Paper

Laser direct writing of photonic structures in X-cut lithium niobate using femtosecond pulses

Venugopal Rao Soma, Shuvan Prashant Turaga, Deepak K. L. N., Surya P. Tewari, Manoj Kumar Gundawar, Narayana Rao Desai

Proceedings Volume 8173, 81730G (2011) https://doi.org/10.1117/12.899559

KEYWORDS: Waveguides, Lithium niobate, Femtosecond phenomena, Crystals, Beam propagation method, Refractive index, Raman spectroscopy, Laser crystals, Photonic devices, Photonic crystals

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Proceedings Article | 21 February 2011 Paper

Ultrafast nonlinear optical properties and excited state dynamics of phthalocyanine thin films

S. Venugopal Rao, P.T. Anusha, T. Shuvan Prashant, D. Swain, Surya P. Tewari

Proceedings Volume 7935, 793517 (2011) https://doi.org/10.1117/12.874632

KEYWORDS: Molecules, Absorption, Picosecond phenomena, Thin films, Nonlinear optics, Optical limiting, Polymethylmethacrylate, Femtosecond phenomena, Polymers, Ultrafast phenomena

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Proceedings Article | 18 May 2010 Paper

Direction-dependent asymmetric expansion of laser-induced shockwaves in air

P. Prem Kiran, Leela Chelikani, Suman Bagchi, Surya Tewari

Proceedings Volume 7721, 772124 (2010) https://doi.org/10.1117/12.854195

KEYWORDS: Laser beam diagnostics, Wave propagation, Laser beam propagation, Laser energy, Spherical lenses, Plasma, Deflectometry, Pulsed laser operation, Laser induced damage, Time metrology

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Proceedings Article | 5 May 2010 Paper

Laser-induced breakdown spectroscopy of RDX and HMX with nanosecond, picosecond, and femtosecond pulses

S. Sreedhar, M. Ashwin Kumar, G. Manoj Kumar, P. Prem Kiran, Surya Tewari, S. Venugopal Rao

Proceedings Volume 7665, 76650T (2010) https://doi.org/10.1117/12.850007

KEYWORDS: Laser induced breakdown spectroscopy, Magnesium, Picosecond phenomena, Spectroscopy, Plasma, Sodium, Femtosecond phenomena, Lenses, Explosives, Chemical analysis

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Proceedings Article | 5 May 2010 Paper

Stoichiometric analysis of ammonium nitrate and ammonium perchlorate with nanosecond laser induced breakdown spectroscopy

S. Sreedhar, S. Venugopal Rao, P. Prem Kiran, Surya P. Tewari, G. Manoj Kumar

Proceedings Volume 7665, 76650J (2010) https://doi.org/10.1117/12.850014

KEYWORDS: Laser induced breakdown spectroscopy, Spectroscopy, Nitrogen, Oxygen, Plasma, Sodium, Explosives, Statistical analysis, Calibration, Crystals

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Proceedings Article | 1 March 2010 Paper

Pump-probe experiments with sub-100 femtosecond pulses for characterizing the excited state dynamics of phthalocyanine thin films

S. Venugopal Rao, Debasis Swain, Surya P. Tewari

Proceedings Volume 7599, 75991P (2010) https://doi.org/10.1117/12.841958

KEYWORDS: Picosecond phenomena, Thin films, Femtosecond phenomena, Ultrafast phenomena, Molecules, Crystals, Zinc, Dispersion, Optical amplifiers, Signal to noise ratio

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Proceedings Article | 1 March 2010 Paper

Picosecond and nanosecond third order nonlinear optical characterization of Cu and Ni phthalocyanines using Z-scan technique

S. Venugopal Rao, Amit Kumar Prasad, L. Giribabu, S. P. Tewari

Proceedings Volume 7599, 75991O (2010) https://doi.org/10.1117/12.841944

KEYWORDS: Absorption, Picosecond phenomena, Molecules, Transmittance, Nonlinear optics, Copper, Nickel, Optical limiting, Metals, Saturable absorption

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Showing 5 of 20 publications

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