Frog abbreviation stands for frequencyresolved optical gating. Dispersioncorrected frequencyresolved optical gating poya wu,1 hsuanhao lu,1 chingzhe weng,1 yenhung chen,2 and shangda yang1,3, 1institute of photonics technologies, national tsing hua university, hsinchu 300, taiwan 2department of optics and photonics, national central university, jhongli 320, taiwan 3department of electrical engineering, national tsing hua university. The experimental apparatus is simple and can be assem. Frequencyresolved opticalgating measurements of ultrashort pulses using surface thirdharmonic generation. The full reconstruction of the optical response function of the plasmon excitation with phase and amplitude without any model assumptions is demonstrated from the analysis of the twodimensional spectrogram obtained by simultaneous time and frequencydomain sh measurements, using interferometric frequency resolved optical gating. Crosscorrelation frequencyresolved optical gating and dynamics of temporal solitons in silicon nanowire waveguides jiali liao,1 matthew marko,2,3 xiujian li,1,6 hui jia,1 ju liu,1 yizhou tan,4 jiankun yang,1 yuanda zhang,1 wusheng tang,1 mingbin yu,5 guoqiang lo,5 dimlee kwong,5 and chee wei wong2,7 1college of science, national university of defense technology, changsha, hunan 410073, china. Supercontinuum pulse measurement by molecular alignment. The effect of the phasemismatch in the secondharmonic crystal, the implications of the beam geometry and the frequencydependent variation of the nonlinearity are. Trog is similar to frequencyresolved optical gating. Another version of frog, called crosscorrelation frog. Part of the physics commons recommended citation brancale, alexandra m. Frequencyresolved optical gating frog is widely used to measure ultrashort laser pulses, also providing an.
The frequencyresolved opticalgating frog technique has revolutionized our. Secondharmonic generation frequencyresolved optical. Frequencyresolved optical gating technique for retrieving the amplitude of a vibrational wavepacket yasuo nabekawa, a, 1 yusuke furukawa, 1 tomoya okino, 1 a. Crosscorrelation frequencyresolved optical gating by molecular alignment for ultraviolet femtosecond pulse measurement peifen lu, jia liu, hao li, haifeng pan, jian wu,a and heping zengb state key laboratory of precision spectroscopy, east china normal university, shanghai 200062. Osa alloptical frequencyresolved optical gating for. Development of frequency resolved optical gating frog.
Measuring ultrashort laser pulses using frequencyresolved optical gating in conjunction with genetic and iterative algorithms. Well established ultrafast measurement techniques such as frequencyresolved optical gating and its simplified version grenouille can only measure one unknown ultrashort laser pulse at a time. We derive the full equation for the frog signal, which is valid even for singleopticalcycle pulses. Frequencyresolvedopticalgating frog is the only reliable technique for completely characterizing an ultrashort laser pulse in time. Jamison1,2 1accelerator science and technology center, stfc daresbury national laboratory, warrington, wa4 4ad, united kingdom 2photon science institute, the university of manchester, manchester m 9pl, united kingdom. Development of frequencyresolved optical gating for. Weiner1 1purdue university, west lafayette, indiana 47907, usa 2national tsinghua university, hsinchu 300, taiwan 3e. Abstractfrequencyresolved optical gating frog is a popular technique for complete characterization of ultrashort laser pulses. From slides accompanying frequency resolved optical gating. Frequencyresolved optical gating recovery via smoothing gradient.
Frog frequencyresolved optical gating with pulsecheck. Revealing carrierenvelope phase through frequency mixing and interference in frequency resolved optical gating e. The effect of the phase mismatch in the secondharmonic crystal, the implications of the beam geometry, and the frequencydependent variation of the nonlinearity are discussed in detail. An apparatus for frequency resolved optical gating of. Short bunches in accelerators uspas, boston, ma 2125 june 2010 if et is the waveform of interest, its spectrogram is. Kane and rick trebino nowadays, frog is a commonlyused method for full characterization of ultrashort optical pulses due to its simplicity and good experimental performance tamir bendory august 17, 2017 4 16. The measurement of ultrashort laser pulses full online. Convergence test for inversion of frequencyresolved. Measurement of 10 fs pulses across the entire visible to. Plasmamirror frequencyresolved optical gating for simultaneous retrieval of a chirped vacuumultraviolet waveform and timedependent reflectivity volume 4 ryuji itakura, takayuki kumada, motoyoshi nakano, hiroshi akagi. The measurement of ultrashort laser pulses books download as pdf. The frequencyresolved optical gating option is designed for laser repetition rates above 10 khz and is available for the pulsecheck autocorrelator series.
The frequencyresolved optical gating techniques were introduced in 1991 by daniel j. Frequencyresolved optical gating technique for retrieving. The perturbed harmonic spectrum can be formulated as a convolution of the unperturbed dipole and a phase gate, implying the validity of complete reconstruction of isolated attosecond pulses using a conventional frequencyresolved optical gating method. This book contains everything you need to know to measure even the shortest, weakest, or most complex ultrashort laser pulses. Abstract we introduce the technique of timeresolved optical gating trog based on dispersive propagation dp, a new noninterferometric method for characterizing ultrashort optical pulses in amplitude and phase without the need for a short optical gating pulse. In particular, the simulations are used to follow the evolution with propagation distance of. Frequency resolved optical gating frog has been used extensively for ultrafast pulse characterization. The trick is in the pulseretrieval mathematics, and trebino invented a robust pulseretrieval algorithm to retrieve the pulse from the spectrally resolved autocorrelation. By performing a frequencyresolved optical gating method with a zno nanowire coupled to tapered optical microfibers, the phase and amplitude of a pulse series are extracted. Pdf we demonstrate a novel variant of frequencyresolved optical gating frog that is based on spectrally resolving a collinear interferometric. Doubleblind frequencyresolved optical gating wikipedia. We discuss the use of secondharmonic generation shg as the nonlinearity in the technique of frequency resolved optical gating frog for measuring the.
Dispersioncorrected frequencyresolved optical gating. Pdf crosscorrelation frequency resolved optical gating. In this thesis, i discuss the operation of the apparatus in the context of the theoretical background, numerical algorithms, and engineering design features of. This problem has been dealt with in detail, and the careful management of linear dispersion has led to the generation and. Fewfemtosecond plasmon dephasing of a single metallic. The measurement of ultrashort laser pulses detail books. Structures of interferometric frequencyresolved optical gating article in ieee journal of selected topics in quantum electronics 122. The frequencyresolved opticalgating frog technique has revolutionized our ability to measure and understand ultrashort laser pulses. Emphasis is placed on the choice of experimental beam geometry and the implementation of the iterative phaseretrieval algorithm that together yield an accurate measurement of the pulse timedependent intensity and phase over a wide range of circumstances. Crosscorrelation frequencyresolved optical gating and.
Wavelength corrected ultrafast pulse characterization. Review article measuring ultrashort laser pulses in the. Frequency resolved optical gating is the stateoftheart technique for measuring the temporal profile of attosecond optical pulses. Structures of interferometric frequencyresolved optical. Noise sensitivity in frequencyresolved opticalgating measurements of ultrashort pulses. It can determine the intensity and phase evolution of an arbitrary ultrashort pulse on a singleshot or multishot basis. Measuring ultrashort laser pulses using frequencyresolved. Align the frog produce second harmonic generation shg blue light record pulse characteristics optimize labview program trigger the camera shutter understand shutter controls expand the frog to other wavelengths frequencyresolved opticalgating frog goals. Frequency resolved optical gating frog is a general method for measuring the spectral phase of ultrashort laser pulses, which range from subfemtosecond to about a nanosecond in length. Abstract the control and data acquisition of homemade, second harmonic generation shg multi. He called the technique frequencyresolved optical gating frog. Supercontinuum pulse measurement by molecular alignment based crosscorrelation frequency resolved optical gating jia liu,1 yahui feng,1 hao li,1 peifen lu,1 haifeng pan, jian wu,1,2 and heping zeng1, 1. While the reconstructed electric field can be uniquely determined from the frog trace, there is no real time calibration of wavelength dependent nonlinearity that affects the frog trace in the reconstruction algorithm.
Since its introduction in 1991, frog has evolved into a marvelously general and powerful technique for measuring ultrashort laser pulses. Development of frequency resolved optical gating frog system for the temporal characterization of femtosecond pulses mentor. Kane, frog was the first technique to solve this problem, which is difficult because, ordinarily, to measure an. The acquired data in frog, called frog trace, is the fourier magnitude of the product of the unknown pulse with a timeshifted version of itself, for several different shifts. Pdf interferometric frequencyresolved optical gating. Frog pulse characterization software the acquisition and retrieval software provides the laser pulse intensity as a function of time and frequency wavelength. Doubleblind frequencyresolved optical gating doubleblind frog is a method for simultaneously measuring two unknown ultrashort laser pulses. The frequency resolved optical gating frog technique has revolutionized our ability to measure and understand ultrashort laser pulses.
The frequency resolved optical gating frog simply involves spectrally resolving the signal beam of an autocorrelation measurement. Takahashi, 1 kaoru yamanouchi, 2 and katsumi midorikawa 1. Frequencyresolved optical gating frog is a popular technique for complete characterization of ultrashort laser pulses. Investigating nonlinear femtosecond pulse propagation with. Recently, the technique of frequencyresolved optical gating frog was introduced.
What is the abbreviation for frequencyresolved optical gating. Crosscorrelation frequencyresolved optical gating by. Frog 10 20 30 40 50 60 10 20 30 40 50 60 shg frog traceexpanded 10 20 30 40 50 60 10 20 30 40 50 60 frog traceexpanded the musical score and the spectrogram frequency resolved optical gating frog 1d vs. In this thesis, i discuss the operation of the apparatus in the context of the theoretical back ground, numerical algorithms, and engineering design features of the experimental. Our capacity to observe and control fundamental physical processes at the atomic level has surged since the advent of ultrafast femtosecond laser sources with pulse duration. Ultralowpower secondharmonic generation frequencyresolved optical gating using aperiodically poled lithium niobate waveguides invited houxun miao,1, shangda yang,2 carsten langrock,3 rostislav v. Frequencyresolved optical gating with the use of second. It is basically the same set up as the autocorrelation except that the. Trebino in his 1997 article measuring ultrashort laser pulses in the timefrequency domain using frequencyresolved optical gating1.
Here we present a single frequencyresolved optical gating frog system capable of selfreferenced characterization of pulses with 10 fs duration across the entire visnir spectral range. The rp photonics buyers guide contains 11 suppliers for frequencyresolved optical gating devices. Chapter 3 second harmonic generation frequencyresolved. Comparison of ultrashortpulse frequencyresolvedopticalgating traces for three common beam geometries.
Frequencyresolved optical gating frog is the gold standard of laser pulse measurement. Frog 10 20 30 40 50 60 10 20 30 40 50 60 shg frog traceexpanded 10 20 30 40 50 60 10 20 30 40 50 60 frog traceexpanded the musical score and the spectrogram frequencyresolved optical gating frog 1d vs. In this work, we demonstrate a simple technique of ultrashort pulses characterization with a single semiconductor nanowire. Numerical simulations are used to study the temporal and spectral characteristics of broadband supercontinua generated in photonic crystal fiber. State key laboratory of precision spectroscopy, east china normal university, shanghai 200062, china.
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