نتایج جستجو برای: reflection loss
تعداد نتایج: 504451 فیلتر نتایج به سال:
An investigation for the enhancement strategy of bandwidth performance and analysis of different types of losses associated with reflectarray antennas is presented in this paper. Studies are carried out using different commercially available dielectric materials with dielectric permittivity ( r) values ranging from 2.08 to 13 and loss tangent (tan ) ranging from 0.0003 to 0.025. The performance...
We recently analyzed a new class of laser amplifier based on transverse Bragg reflection. We show that the unique properties of Bragg confinement make it possible through modal loss discrimination to achieve single-transverse-mode operation with transverse modal size that is an order of magnitude larger than in lasers that depend on total internal reflection for transverse confinement.
A resonant grating mirror comprising a multilayer submirror and a grating slab waveguide submirror exhibiting constructive mutual reflection is shown experimentally to provide zero transmission. Its reflection line width of less than 1 nm, its polarization selectivity and low overall loss make the device usable as a longitudinal mode filter in a disk laser in the 1000-1100 nm wavelength range.
Background and Aim: Androgenetic alopecia is an extremely common disorder affecting both men and women. The incidence is generally considered to be greater in males than females, although some evidence suggests that the apparent differences in incidence may be a reflection of different expression in males and females. This genetically determined disorder is progressive through the gradual conve...
Parity-time (PT) symmetry is of great interest. The reciprocal and unidirectional features are intriguing besides the (PT) symmetry phase transition. Recently, the reciprocal transmission, unidirectional reflectionless and invisibility are intensively studied. Here, we show the reciprocal reflection/transmission in (PT)-symmetric system is closely related to the type of (PT) symmetry, that is, ...
Abstract The life story framework emphasizes that past loss experiences guide current attitudes and behaviors. Final memories from the death of a spouse promote post-loss meaning-making. Through reliable narrative analysis, this study delineates positive negative affective sequences in final spousal older adults (N = 65; Mage 81.59). It also examines reported confidence successfully caring for ...
We study energy loss spectra of bromine ions scattered from silver thin films in the range 4 to 36 MeV forward reflection geometry. The different contributions are analyzed by complementary Monte Carlo simulations. assess dependence scattering yield and nuclear electronic losses on penetration depth detected ions. For larger depth, we observe decreased elastic increased trajectory length compar...
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