sum-frequency generation

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• Sum frequency generation — (SFG) is an example of a second order non linear optical process.This phenomenon is based on the annihilation of two input photons at frequencies omega 1 and omega 2 while, simultaneously, one photon at frequency omega 3 is generated.In order… …   Wikipedia

• Frequency 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… …   Wikipedia

• Frequency Addition Source of Optical Radiation — In physics, a FASOR is an acronym for Frequency Addition Source of Optical Radiation. It is a device similar to a laser where the emitted light is produced in a sum frequency generation process from two laser sources that operate at a different… …   Wikipedia

• Optical frequency multiplier — An optical frequency multiplier is a nonlinear optical device, in which photons interacting with a nonlinear material are effectively combined to form new photons with greater energy, and thus higher frequency (and shorter wavelength). Two types… …   Wikipedia

• Sum of absolute transformed differences — (SATD) is a widely used video quality metric used for block matching in motion estimation for video compression. It works by taking a frequency transform, usually a Hadamard transform, of the differences between the pixels in the original block… …   Wikipedia

• Allele frequency — is a measure of the relative frequency of an allele at a genetic place(locus) in a population. Usually it is expressed as a proportion or a percentage. In population genetics, allele frequencies are used to depict the amount of genetic diversity… …   Wikipedia

• Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• SFG — Sum Frequency Generation (Community » Sports) Sum Frequency Generation (Academic & Science » Electronics) * Science Functional Genomics (Medical » Human Genome) * Security First Group (Business » Firms) * Sunshine Farm and Garden (Business »… …   Abbreviations dictionary

• Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… …   Wikipedia

• Summenfrequenzspektroskopie — Die Summenfrequenzspektroskopie (SFS, englisch sum frequency spectroscopy, auch sum frequency generation spectroscopy, SFGS, vibrational sum frequency spectroscopy, VSFS, oder sum frequency vibrational spectroscopy, SFVS, genannt) ist… …   Deutsch Wikipedia

• FASOR — Saltar a navegación, búsqueda Para el vector utilizado para representar una onda, véase fasor. En física del láser, FASOR es el acrónimo del inglés Frequency Addition Source of Optical Radiation (Fuente de Radiación Óptica por Suma de… …   Wikipedia Español