γ-Irradiated PVA/Ag nanocomposite films: Materials for optical applications

RP Chahal, S Mahendia, AK Tomar, S Kumar - Journal of Alloys and …, 2012 - Elsevier
Polyvinyl alcohol–silver (PVA/Ag) nanocomposites were prepared through in situ reduction
of silver nitrate (AgNO3) within PVA hydrogel under continuous stirring at 60° C. The …

[HTML][HTML] Plasmonic materials and manufacturing methods for rapid and sustainable thermal cycler for PCR

K Shrestha, S Kim, G Cho - Materials Today Advances, 2023 - Elsevier
Multiple outbreaks of fatal infectious diseases throughout history have intensified the need
for early diagnostic methods to efficiently control their spread. Polymerase chain reaction …

Electron Bernstein wave aided cosh-Gaussian laser beam absorption in plasma

A Kumar, SP Mishra, A Kumar, A Varma - Optik, 2023 - Elsevier
In this paper, we investigate the electron Bernstein wave aided cosh-Gaussian laser beam
absorption in a plasma with static magnetic field. The cosh-Gaussian laser beam has …

Modified Drude model for small gold nanoparticles surface plasmon resonance based on the role of classical confinement

A Kheirandish, N Sepehri Javan… - Scientific reports, 2020 - nature.com
In this paper, we study the effect of restoration force caused by the limited size of a small
metallic nanoparticle (MNP) on its linear response to the electric field of incident light. In a …

Nonlinear absorption of cosh-Gaussian laser beam in arrays of vertically aligned carbon nanotube

A Varma, SP Mishra, A Kumar, A Kumar - Plasmonics, 2024 - Springer
The nonlinear absorption of high power cosh-Gaussian laser beam in arrays of vertically
aligned carbon nanotube is theoretically investigated. Herein, the cosh-Gaussian (ChG) …

Refractive-index tuning of highly fluorescent carbon dots

VB Kumar, AK Sahu, ASM Mohsin, X Li… - … applied materials & …, 2017 - ACS Publications
In this manuscript, we report the refractive-index (RI) modulation of various concentrations of
nitrogen-doped carbon dots (N@ C-dots) embedded in poly (vinyl alcohol)(PVA) polymer …

Plasmonic and Nonlinear Optical Absorption Properties of Ag:ZrO2 Nanocomposite Thin Films

M Kumar, CSS Sandeep, G Kumar, YK Mishra, R Philip… - Plasmonics, 2014 - Springer
Ag nanoparticles (NPs) embedded in a zirconium oxide matrix in the form of Ag: ZrO 2
nanocomposite (NC) thin films were synthesized by using the sol–gel technique followed by …

Reflection of femtosecond laser light in multipulse ablation of metals

AY Vorobyev, C Guo - Journal of Applied Physics, 2011 - pubs.aip.org
The shot-to-shot reflectance of high-intensity laser light is studied as a function of both the
number of laser shots and laser fluence in multipulse ablation of a metal when the irradiated …

Nonlinear absorption of Hermite cosh-Gaussian laser beam in an assembly of cylindrical carbon nanotubes embedded with static magnetic field

K Ali, S Kumar, SP Mishra, A Kumar… - Optical and Quantum …, 2024 - Springer
In this paper, we have developed a theoretical formalism to investigate the nonlinear
absorption of high-power Hermite cosh-Gaussian laser beam in arrays of cylindrical carbon …

Tuning of refractive index of poly (vinyl alcohol): Effect of embedding Cu and Ag nanoparticles

S Mahendia, A Kumar Tomar, PK Goyal… - Journal of Applied …, 2013 - pubs.aip.org
In this article, we have reported the results of our measurements, related to the tuning of the
refractive index of the poly (vinyl alcohol)(PVA) polymer on embedding Cu and Ag …