• Manoj Johri

Articles written in Pramana – Journal of Physics

• Theoretical study of relative width of photonic band gap for the 3-D dielectric structure

Calculations for the relative width (Δω/ω0) as a function of refractive index and relative radius of the photonic band gap for the fcc closed packed 3-D dielectric microstructure are reported and comparison of experimental observations and theoretical predictions are given. This work is useful for the understanding of photonic crystals and occurrence of the photonic band gap.

• Dielectric relaxation studies in 5CB nematic liquid crystal at 9 GH$_z$ under the inﬂuence of external magnetic ﬁeld using microwave cavity spectrometer

Resonance width, shift in resonance frequency, relaxation time and activation energy of 5CB nematic liquid crystal are measured using microwave cavity technique under the inﬂuence of an external magnetic ﬁeld at 9 GHz and at different temperatures. The dielectric response in liquid crystal at different temperatures and the effects of applied magnetic ﬁeld on transition temperatures are studied in the present work. The technique needs a small quantity (&lt; 0.001 cm3) of the sample and provides fruitful information about the macroscopic structure of the liquid crystal.

• # Pramana – Journal of Physics

Volume 95, 2021
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019