As low as 2 W threshold power is obtained in several centimeters long waveguide. In one aspect, a method includes propagating a first wave along an axis of a multimode waveguide in a forward direction, the first optical wave having a first frequency; propagating a second wave along the axis...
We present in this paper compelling evidence supporting the three-wave traveling-wave theory developed by Pierce fifty years ago. The transition in a Smith-Purcell free-electron laser from low, through moderate amplified spontaneous emission, to strong gain conditions was carefully controlled. Below th...
Plural and Possessive Names: A Guide What's the difference between 'fascism' and 'socialism'? More Commonly Misspelled Words Words You Always Have to Look Up Popular in Wordplay See All More Words with Remarkable Origins 8 Words for Lesser-Known Musical Instruments ...
aUltrasound can produce 3 forms of oscillation in the medium wave: shear wave - particle direction perpendicular to the direction of propagation of vibration wave; Longitudinal wave - particle direction is consistent with the direction of propagation of vibration wave; Surface wave - particle ...
The meaning of OSCILLATION is the action or state of oscillating. How to use oscillation in a sentence.
Behavioral/Systems/Cognitive The Sleep Slow Oscillation as a Traveling Wave Figure 2. The frequency of occurrence of slow oscillations increases progressively as sleep deepens. A, The time of occurrence of the slow oscillation during the first hour of sleep in one subject is superimposed on the hy...
This circuit can be used as a pulse or staircase wave generator, pulse-frequency modulator with discontinuous levels, analog-digital converter, etc. It is simple in construction, requires little source power, and has a wide frequency range (e.g., sec~msec). 展开 ...
undulation, wave - (physics) a movement up and down or back and forth transient - (physics) a short-lived oscillation in a system caused by a sudden change of voltage or current or load beat - a single pulsation of an oscillation produced by adding two waves of different frequencies; has...
•When thestringis short, theoscillationis always fast.•Inwavetermsthiscorrespondsto the direction in which theoscillationstake place.•Volcanologists nowrecognizetheseoscillationsas aredflagthat avolcanoisenteringadangerousphase.•Thetankstravelledup and down theinclinewith a freeboard of about ...
a电磁波(又称电磁辐射)是由同相振荡且互相垂直的电场与磁场在空间中以波的形式移动,其传播方向垂直于电场与磁场构成的平面,有效的传递能量和动量。 The electromagnetic wave (called electromagnetic radiation) is by the synchronism vibration also the mutually perpendicular electric field and the magnetic field ...