We have investigated laser action in a hybrid photonic crystal (HPC) composed of ferroelectric liquid crystal (FLC) and dielectric multilayers. Single-mode laser action was observed in the HPC, which was based on a defect mode at the band edge of the FLC. The lasing threshold of the HPC ...
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Step by step video & image solution for An electromagnetic wave of frequency upsilon=3 MHz passes from vacuum into a dielectric medium with permittivity epsilon=4. Then by Physics experts to help you in doubts & scoring excellent marks in Class 12 exams.Updated on:21/07/2023Class...
It is shown that a key capability of the developed analytical method is to decouple the usual correlations in the index and the thickness of ultrathin films.doi:10.2528/PIERB10090104Peep Adamson,27,(2011)Adamson, P., "Reflection properties of a biaxially anisotropic dielectric film in a long...
where ε0, εr, VTFL, e, and L represent the vacuum permittivity, the relative dielectric constant of perovskite, the onset voltage of the trap-filled limit region, the elemental charge, and the thickness of the perovskite film, respectively. In the J-V curves, J is proportional to V i...
and the spectral tunable parametric conversion could be realized. Fortunately, in a bulk ZGP crystal, Type-I PM pumped at ~2.4 μm could provide an ultra-broadband PM bandwidth for an idler wavelength spanning from 5 to 11 μm, as calculated in Fig.1a, with a PM angle designed as 48.3...
The reflectivity of such a mirror is discussed in Problem 3.13, Such dielectric mirrors can be deposited at the time of fabrication of the laser. One problem with VCSELs is the large ohmic resistance encountered by the injected current. This leads to considerable heating of the device and the...
In a dielectric (or semiconductor), there is no essential absorption while the photon energy is smaller than the material bandgap. The bandgap energy marks the edge between the transparent and the absorbing range of the material; this is addressed in Section 7.4.2. The largest bandgaps (and ...
A magneto-optical recording medium for short wavelength in which a dielectric layer, a reproducing/recording bilayer made of (Ndx(TbFeCoCr)100−x/(TbFeCoCr) or (NdaGdb(TbFeCoCr)100−(a+b)/(TbFeCoCr), a protective layer and a reflective layer are, in sequence, formed on a substrate, ...
1. A lidar system comprising: a lighting module configured to (i) select a wavelength from among a plurality of wavelength values, for a particular time period, and (ii) emit light at the selected wavelength, wherein the lighting module emits light at different wavelengths during at least two...