phase matching

phase matching

[′fāz ‚mach·iŋ]
(optics)
A condition in which the polarization wave produced by two or more beams of incident radiation in a nonlinear medium has the same phase velocity as a freely propagating wave of the same frequency; the amplitude of the polarization wave is then greatly enhanced.
References in periodicals archive ?
This is sometimes called phase matching. The ideal is that TRUE and COMPLEMENT travel together in perfect complementary harmony, as shown on the left in FIGURE 2.
A theoretical model was developed for dephasing effects due to angular deviation from ideal phase matching, and the impact of the angular content of the beam on small signal gain and conversion efficiency in a strongly depleted regime was evaluated numerically [26].
For birefringent phase matching and the output wavelengths are controlled with angle or temperature tuning of the refractive indices.
In the proposed fiber the light propagating in the core stimulates SPP on a metal surface and mode coupling occurs between a core mode and SPP modes at the phase matching condition.
Reportedly, Norsat has been working closely with Harris since 2013, in order to develop and deliver custom SSPAs to meet the challenging RF performance requirements for linearity, gain flatness and phase matching that is required by the Harris system.
The high number of channels supported, high data sampling frequencies, tight phase matching between channels and the ability to handle wide dynamic range inputs all make PULSE ideal for large aerospace systems.
"The removal of phase matching in nonlinear optical metamaterials may lead to the generation of entangled photons for quantum networking."
Summary of Ordered Concerns Concern Order Data Rates Total length (static 1 All phase matching) Via effects 1 All Impedance discontinuities Differential pair 2 All spacing Trace width changes 2 All Crossing plane splits 2 All Layer changes 2 All General use of vias 3 [greater than or equal to] 5GB/S Crossing anti-pad 3 [greater than or equal to] openings 5GB/S Teardrops 4 [greater than or equal to] 5GB/S Aggressor net spacing 2 All Breakout length 2 All (breakout phase matching) Incremental length 3 [greater than or equal to] (dynamic phase 10GB/S matching) Via stubs 3 [greater than or equal to] 5GB/S Fiberweave 3 [greater than or equal to] 10GB/S
Under a precise phase matching condition, the grating partially couples externally propagating waves into guided modes within the slab.
The average of intensities of two simulations at thickness d and d" gives the same results as phase matching therefore incoherent propagation of light inside the specific layer is taken into account.