compression of ultrashort pulses

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• Prism compressor — A prism compressor is an optical device used to shorten the duration of a positively chirped ultrashort laser pulse by giving different wavelength components a different time delay. It typically consists of two prisms and a mirror. Figure 1 shows …   Wikipedia

• Self-focusing — is a non linear optical process induced by the change in refractive index of materials exposed to intense electromagnetic radiation. [Cumberbatch, E. Self focusing in Non linear optics , J. Inst. Maths Applics 6, 250 (1970)] Mourou, G. A. et al.… …   Wikipedia

• Modelocking — Mode locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10 12s) or femtoseconds (10 15s).The basis of the technique is to induce a fixed phase… …   Wikipedia

• Mode-locking — is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s). The basis of the technique is to induce a fixed phase… …   Wikipedia

• Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… …   Wikipedia

• Chirped pulse amplification — Diagramatic scheme of chirped pulse amplification. Chirped pulse amplification (CPA) is a technique for amplifying an ultrashort laser pulse up to the petawatt level with the laser pulse being stretched out temporally and spectrally prior to… …   Wikipedia

• Gurgen Askaryan — ( hy. Գուրգեն Ասկարյան , ru. Гурген Аскарьян or Гурген Аскарян ) (1928 1997) was a prominent Soviet physicist, famous for his discovery of the self focusing of light. Among his other achievements are the pioneering studies of light matter… …   Wikipedia

• Electromagnetic pulse — Ebomb redirects here. For EBOM, see Engineering bill of materials. This article is about the general weapons effect. For other uses, see the more specific topic (for example, Electromagnetic forming) An electromagnetic pulse (sometimes… …   Wikipedia

• Self-phase modulation — (SPM) is a nonlinear optical effect of light matter interaction.An ultrashort pulse of light, when travelling in a medium, will induce a varying refractive index of the medium due to the optical Kerr effect. This variation in refractive index… …   Wikipedia

• Multiple-prism dispersion theory — The first description of multiple prism arrays, and multiple prism dispersion, was given by Newton in his book Opticks.[1] Prism pair expanders were introduced by Brewster in 1813.[2] A modern mathematical description of the single prism… …   Wikipedia

• Chirp — For other uses, see Chirp (disambiguation). A chirp is a signal in which the frequency increases ( up chirp ) or decreases ( down chirp ) with time. In some sources, the term chirp is used interchangeably with sweep signal.[1] It is commonly used …   Wikipedia