Search Results - "Parashar, J."

Dynamic control over group speed of light in plasma cladded optical fiber: An analytical approach by Mishra, A.K., Medhekar, Sarang, Parashar, J., Kumar, Mukesh

“…The ability of plasma frequency to tune the guiding properties of plasma cladded optical fiber is explored and numerically investigated. The identified…”
Get full text

Resonant second harmonic generation in a plasma filled parallel plane waveguide by Parashar, J

“…A TE mode electromagnetic radiation propagating through plasma filled parallel plane guide in the presence of a density ripple, produces resonant second…”
Get full text

Estimation of Abundance and Distribution of Salt Marsh Plants from Images Using Deep Learning by Parashar, J., Bhandarkar, S. M., Simon, J., Hopkinson, B. M., Pennings, S. C.

“…Recent advances in computer vision and machine learning, most notably deep convolutional neural networks (CNNs), are exploited to identify and localize various…”
Get full text

Excitation of slow electromagnetic mode by an electron beam in a nanoparticle filled waveguide by Chauhan, Santosh, Parashar, J., Purohit, P.K.

“…An electron beam propagating through a parallel plate waveguide filled with nanoparticles can excite slow electromagnetic mode. The phase velocity of slow mode…”
Get full text

Terahertz surface plasmon excitation over a bismuth thin film by an electron beam by Parashar, J., Chauhan, S., Purohit, P.K., Agrawal, V.K.

“…The excitation of terahertz surface plasma wave (SPW) over bismuth thin film-glass structure by a parallel propagating electron beam is studied. The SPW phase…”
Get full text

Second harmonic generation from a metallic thin film by an obliquely incident laser by Purohit, P K, Agrawal, V K, Sharma, H, Parashar, J

“…The generation of second harmonic by a laser incident obliquely on a thin metal film grown on a glass substrate is studied. The laser imparts a nonlinear…”
Get full text

Generation of terahertz radiation by nonlinear mixing of two laser beams in overdense plasma by Parashar, J., Mishra, E., Mahajan, S. K.

“…Terahertz radiation generation by nonlinear mixing of two laser beams in an overdense plasma is investigated. The lasers penetrate into the plasma and impart…”
Get full text

Intense Upconversion Luminescence of Yb3+-Er3+ in Li2O Content Tungsten-tellurite Glasses by Ansari, Ghizal F., Mahajan, Sachin Kumar, Parashar, J.

“…The Er 3+ -Yb 3+ codoped in Li 2 O content tungsten -tellurite (TWL) transparent glasses are synthesized and measured the absorption, Raman and upconversion…”
Get full text

Investigation of Deformation Behavior of Ring-Tensile Specimens Machined from Pressure Tubes of Indian PHWR by Samal, M. K., Balakrishnan, K. S., Parashar, J., Tiwari, G. P.

“…Specimens machined in the form of circular rings directly from the nuclear reactor pressure tubes and tested in a ring-tension test-setup offer great…”
Get full text

Tunnel ionization due to the plasma wave produced by beating two lasers in a plasma embedded by high- Z impurities by Parashar, J.

“…Two intense laser beams, counter propagating in a plasma embedded with high- Z impurities, excite a large amplitude plasma wave when the frequency difference…”
Get full text

Laser excitation of surface plasma waves over a diffuse plasma boundary by Mishra, E, Parashar, J, Gaur, N K

Get full text

Suitability of Miniature Tensile Specimens for Estimating the Mechanical Property Data of Pressure Tubes: An Assessment by Balakrishnan, K. S., Samal, M. K., Parashar, J., Tiwari, G. P., Anatharaman, S.

“…The integrity assessment of nuclear reactor pressure tubes (PTs) used in pressurized heavy water reactors necessitates the determination of their tensile…”
Get full text

Harmonic emission due to the nonlinear coupling of a Gaussian laser and a plasma wave by Pathak, R, Jain, R K, Parashar, J

“…A high-power Gaussian laser propagating through a plasma couples with a large-amplitude plasma wave and undergoes scattering to produce harmonics. The process…”
Get full text

Light and Surface Plasma Wave Induced Force on Nanoparticles and Nanotubes by Jain, S, Parashar, J, Kurchania, R

“…Expressions for force on spherical nanoparticles and cylindrical nanotubes due to laser and surface plasma wave are obtained. It shows resonant enhancement at…”
Get full text

Laser Self-Focusing and Nonlinear Absorption in Expanding Clusters by Chuan Sheng Liu, Parashar, J.

“…An intense short-pulse laser, propagating through a clustered gas, converts the clusters into hot plasma balls on subpicosecond time scale. The polarizability…”
Get full text

Stimulated Raman Scattering of a Laser in a Magnetic Plasma Channel by Parashar, J

Get full text

Self-distortion of a short laser pulse in a plasma by Sharma, H., Parashar, J., Gaur, N. K.

“…Self-distortion of a high-intensity laser pulse due to relativistic effects propagating in a high-density plasma is investigated. As the pulse energy…”
Get full text

Modulational Instability of a Self-Guided Laser in a Magnetized Plasma Channel by Chuan Sheng Liu, Parashar, J.

“…A self-guided laser propagating in a plasma channel in the direction of static magnetic field is unstable to a plasma wave perturbation comoving with the laser…”
Get full text

Surgical staging and high dose rate brachytherapy for endometrial cancer: Limiting external radiotherapy to node-positive tumors by Fanning, James, Nanavati, Parashar J., Hilgers, Robert D.

“…To evaluate the efficacy and morbidity of surgical staging and high dose rate brachytherapy for women with stage I–IIIA endometrial cancer. Sixty consecutive…”
Get full text

A comparison of permanent prostate brachytherapy techniques: preplan vs. hybrid interactive planning with postimplant analysis by Shanahan, Thomas G, Nanavati, Parashar J, Mueller, Paul W, Maxey, Randy B

“…To compare preparation time, procedure time in the operating room, equipment needs, and Day 0 postimplant dosimetry between two different Mick implant…”
Get more information