Anshu D. Varshney

Study of birefringence of elliptical core photonic crystal fiber using Mathieu function

The birefringence of the elliptical core photonic crystal fiber with circular pores in the cladding has been studied by using higher order Mathieu functions. It is observed that the birefringence decreases with decreasing wavelength. Calculated results also indicate the sensitivity to the radius of the pores in the cladding. High birefringence up to 0.0079 is obtained. The efficacy of this proposed method is proved by comparing the results.

Stimulated compton scattering of surface plasma wave excited over metallic surface by a laser

A high-frequency surface plasma wave (SPW) excited over metallic surface irradiated by a laser beam, can undergo stimulated Compton scattering if phase velocity of daughter plasma wave is equal to the Fermi velocity for metal. The pump SPW

Enhanced absorption of surface plasma wave by metal nano-particles in the presence of external magnetic field

{\rm (}{{\rm \omega} _0},{\vec k_{0{\rm z}}})

Optical sensor for the determination of adulteration in petrol: design and development

parametrically excites a quasi-electrostatic plasma wave

Dispersion properties of chalcogenide photonic crystal fiber

{\rm (\omega}, {\vec k_{\rm z}})

Modal analysis of highly birefringent elliptical core photonic crystal fibers from scalar and vectorial effective index method

and a backscattered sideband SPW

Surface plasma waves induced electron acceleration in a static magnetic field

{\rm (}{{\rm \omega} _1},{\vec k_{1{\rm z}}})

Parametric excitation of surface plasma waves by stimulated Compton scattering of laser beam at metal-free space interface

at resonance ω 0 = ω − ω 1 and

Determination of waveguiding and geometrical parameters of endlessly single mode photonic crystal fiber: theory and experiment

{\vec k_{0{\rm z}}} = {\vec k_{\rm z}} - {\vec k_{1{\rm z}}}

Characterization of polarization maintaining photonic crystal fiber from far field measurements

. The growth rate of Compton process increases with the frequency of incident laser and turns out to be 5.425 × 10 10 rad/s at laser frequency ω 0 = 0.7595 × 10 15 rad/s for incident laser amplitude A 0L = 11 × 10 11 V/m, laser spot size b = 1.38 × 10 −5 m, and free electron density of metal n 0 = 5.85 × 10 28 /m 3 . The excitation of highly damped quasi-electrostatic plasma wave in this parametric process provide a better nonlinear option for surface heating as compared with direct laser heating. The process can also be used for diagnostics purposes.