Search results
Results from the WOW.Com Content Network
An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification process. It is essentially the same as an optical parametric oscillator , but without the optical cavity (i.e., the light beams pass through the apparatus just once or twice, rather than many ...
Infrared optical parametric oscillator. An optical parametric oscillator (OPO) is a parametric oscillator that oscillates at optical frequencies. It converts an input laser wave (called "pump") with frequency into two output waves of lower frequency (,) by means of second-order nonlinear optical interaction.
An optical phased array (OPA) is the optical analog of a radio-wave phased array. [1] By dynamically controlling the optical properties of a surface on a microscopic scale, it is possible to steer the direction of light beams (in an OPA transmitter [ 2 ] ), or the view direction of sensors (in an OPA receiver [ 3 ] ), without any moving parts.
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output, [1] and an extremely high gain.
AOL Mail welcomes Verizon customers to our safe and delightful email experience!
At 84 years old, Evelyn Paternostro spends her days working part time as a cashier at Dollar Tree. For decades, she dedicated her life to education, serving as a teacher and principal in Louisiana.
The Williams Ephs (/ ˈ iː f s / EEFS) [2] are the varsity intercollegiate athletic programs of Williams College in Williamstown, Massachusetts.. The school sponsors 32 varsity sports, most of which compete in the Division III New England Small College Athletic Conference (NESCAC).