light phase modulator
41Mach-Zehnder interferometer — The Mach Zehnder interferometer (named after physicists Ludwig Mach (son of Ernst Mach) and Ludwig Zehnder) is a device used to determine the phase shift caused by a small sample which is placed in the path of one of two collimated beams (thus… …
42Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …
43Medicinal mushrooms — Lepista nuda Medicinal mushrooms are mushrooms, or mushroom extracts, that are used or studied as possible treatments for diseases. Lentinula edodes (shiitake), Grifola frondosa (maitake), Ganoderma lucidum (mannentake), and Cordyceps, have a… …
44Computer generated holography — (CGH) is the method of digitally generating holographic interference patterns. A holographic image can be generated e.g. by digitally computing a holographic interference pattern and printing it onto a mask or film for subsequent illumination by… …
45Menopause — Change of Life redirects here. For the Eureka Seven episode, see Change of Life (Eureka Seven). For the Goodies episode, see Change of Life (The Goodies). Menopause Classification and external resources ICD 10 N95.0 ICD 9 …
46Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
47Magnetic circular dichroism — (MCD) is the differential absorption of left and right circularly polarized (LCP and RCP) light, induced in a sample by a strong magnetic field oriented parallel to the direction of light propagation. MCD measurements can detect transitions which …
48Anticholinergic — An anticholinergic agent is a substance that blocks the neurotransmitter acetylcholine in the central and the peripheral nervous system. An example of an anticholinergic is dicycloverine, and the classic example is atropine. Anticholinergics are… …
49Laser acronyms — Here, is a list of acronyms used in laser physics, applications and technology.A*AOM – acousto optic modulator *APD – avalanche photodiode *APM – additive pulse mode locking *ASE – amplified spontaneous emission *AWG – arrayed waveguide… …
50Photoelasticity — is an experimental method to determine stress distribution in a material. The method is mostly used in cases where mathematical methods become quite cumbersome. Unlike the analytical methods of stress determination, photoelasticity gives a fairly …
