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- Frequency-resolved_optical_gating abstract "Frequency-resolved optical gating (FROG) is a general method for measuring ultrashort laser pulses, which range from subfemtosecond to about a nanosecond in length. Invented in 1991 by Rick Trebino and Daniel J. Kane, FROG was the first technique to solve this problem, which is difficult because, ordinarily, to measure an event in time, a shorter event is required with which to measure it. For example, to measure a soap bubble popping requires a strobe light with a shorter duration to freeze the action. Because ultrashort laser pulses are the shortest events ever created, before FROG, it was thought by many that their complete measurement in time was not possible. FROG, however, solved the problem by measuring an "auto-spectrogram" of the pulse, in which the pulse gates itself in a nonlinear-optical medium and the resulting gated piece of the pulse is then spectrally resolved as a function of the delay between the two pulses. Retrieval of the pulse from its FROG trace is accomplished by using a two-dimensional phase-retrieval algorithm. FROG is currently the standard technique for measuring ultrashort laser pulses, replacing an older method called autocorrelation, which only gave a rough estimate for the pulse length. FROG is simply a spectrally resolved autocorrelation, which allows the use of a phase-retrieval algorithm to retrieve the precise pulse intensity and phase vs. time. It can measure both very simple and very complex ultrashort laser pulses, and it has measured the most complex pulse ever measured without the use of a reference pulse. Simple versions of FROG exist (with the acronym, GRENOUILLE, the French word for FROG), utilizing only a few easily aligned optical components. Both FROG and GRENOUILLE are in common use in research and industrial labs around the world.".
- Frequency-resolved_optical_gating thumbnail SHG_FROG.png?width=300.
- Frequency-resolved_optical_gating wikiPageExternalLink frog.gatech.edu.
- Frequency-resolved_optical_gating wikiPageExternalLink DeLong-GenProj-OptLett19-1994.pdf.
- Frequency-resolved_optical_gating wikiPageExternalLink Trebino-FROGreview-RSI-1997.pdf.
- Frequency-resolved_optical_gating wikiPageID "2855589".
- Frequency-resolved_optical_gating wikiPageRevisionID "578932762".
- Frequency-resolved_optical_gating hasPhotoCollection Frequency-resolved_optical_gating.
- Frequency-resolved_optical_gating subject Category:Lasers.
- Frequency-resolved_optical_gating subject Category:Nonlinear_optics.
- Frequency-resolved_optical_gating subject Category:Optical_metrology.
- Frequency-resolved_optical_gating type Artifact100021939.
- Frequency-resolved_optical_gating type Device103183080.
- Frequency-resolved_optical_gating type Instrumentality103575240.
- Frequency-resolved_optical_gating type Laser103643253.
- Frequency-resolved_optical_gating type Lasers.
- Frequency-resolved_optical_gating type Object100002684.
- Frequency-resolved_optical_gating type OpticalDevice103851341.
- Frequency-resolved_optical_gating type PhysicalEntity100001930.
- Frequency-resolved_optical_gating type Whole100003553.
- Frequency-resolved_optical_gating comment "Frequency-resolved optical gating (FROG) is a general method for measuring ultrashort laser pulses, which range from subfemtosecond to about a nanosecond in length. Invented in 1991 by Rick Trebino and Daniel J. Kane, FROG was the first technique to solve this problem, which is difficult because, ordinarily, to measure an event in time, a shorter event is required with which to measure it.".
- Frequency-resolved_optical_gating label "Frequency-Resolved Optical Gating".
- Frequency-resolved_optical_gating label "Frequency-Resolved Optical Gating".
- Frequency-resolved_optical_gating label "Frequency-resolved optical gating".
- Frequency-resolved_optical_gating label "Frequency-resolved optical gating".
- Frequency-resolved_optical_gating label "Frequency-resolved optical gating".
- Frequency-resolved_optical_gating label "频域分辨光学开关".
- Frequency-resolved_optical_gating sameAs Frequency-resolved_optical_gating.
- Frequency-resolved_optical_gating sameAs Frequency-Resolved_Optical_Gating.
- Frequency-resolved_optical_gating sameAs Frequency-Resolved_Optical_Gating.
- Frequency-resolved_optical_gating sameAs m.0873gv.
- Frequency-resolved_optical_gating sameAs Q1070851.
- Frequency-resolved_optical_gating sameAs Q1070851.
- Frequency-resolved_optical_gating sameAs Frequency-resolved_optical_gating.
- Frequency-resolved_optical_gating wasDerivedFrom Frequency-resolved_optical_gating?oldid=578932762.
- Frequency-resolved_optical_gating depiction SHG_FROG.png.
- Frequency-resolved_optical_gating isPrimaryTopicOf Frequency-resolved_optical_gating.
