411 citations · 1.4k across the 14 of their papers we have counts for
14 papers
Phase matching of high harmonic generation in the soft and hard X-ray regions of the spectrum
Tenio Popmintchev, Ming-Chang Chen, Alon Bahabad +6
We show how bright, fully coherent, hard x-ray beams can be generated through nonlinear upconversion of femtosecond laser light. By using longer-wavelength mid-infrared driving las…
Efficient soliton self-frequency shift in hydrogen-filled hollow-core fiber
Yi-Hao Chen, Pavel Sidorenko, Enrique Antonio-Lopez +2
We report a study of soliton self-frequency shifting in hydrogen-filled hollow-core fiber. The combination of hydrogen and short 40-fs input pulses underlies clean and efficient ge…
Multimode Mamyshev Oscillator
Henry Haig, Pavel Sidorenko, Anirban Dhar +4
We present a spatiotemporally mode-locked Mamyshev oscillator. A wide variety of multimode mode-locked states, with varying degrees of spatiotemporal coupling, are observed. We fin…
Direct Observation of Thermalization to a Rayleigh-Jeans Distribution in Multimode Optical Fibers
Hamed Pourbeyram, Pavel Sidorenko, Fan Wu +4
Recent years have witnessed a resurgence of interest in nonlinear multimode optical systems where a host of intriguing effects have been observed that are impossible in single-mode…
Starting Dynamics of a Fully Electronically Controlled Linear Mamyshev Oscillator
Yi-Hao Chen, Pavel Sidorenko, Frank Wise
We start an environmentally-stable linear Mamyshev oscillator with electronically-controlled modulated pump and a moving filter. It delivers a 21-nJ pulse that becomes 65 fs in dur…
Deep learning reconstruction of ultrashort pulses from 2D spatial intensity patterns recorded by an all-in-line system in a single-shot
Ron Ziv, Alex Dikopoltsev, Tom Zahavy +4
We propose a simple all-in-line single-shot scheme for diagnostics of ultrashort laser pulses, consisting of a multi-mode fiber, a nonlinear crystal and a CCD camera. The system re…
Mechanisms of Spatiotemporal Mode-Locking
Logan G. Wright, Pavel Sidorenko, Hamed Pourbeyram +6
Mode-locking is a process in which different modes of an optical resonator establish, through nonlinear interactions, stable synchronization. This self-organization underlies light…
Nonlinear ultrafast fiber amplifiers beyond the gain-narrowing limit
Pavel Sidorenko, Walter Fu, Frank Wise
Ultrafast lasers are becoming increasingly widespread in science and industry alike. Fiber-based ultrafast laser sources are especially attractive because of their compactness, ali…
Multi-megawatt, self-seeded Mamyshev oscillator
Pavel Sidorenko, Walter Fu, Logan G Wright +1
We demonstrate a fiber oscillator that achieves 3 MW peak power, is easily started and is environmentally stable. The Mamyshev oscillator delivers 190-nJ pulses that can be compres…
On the Uniqueness of FROG Methods
Tamir Bendory, Pavel Sidorenko, Yonina C. Eldar
The problem of recovering a signal from its power spectrum, called phase retrieval, arises in many scientific fields. One of many examples is ultra-short laser pulse characterizati…
Ptychographic reconstruction algorithm for frequency resolved optical gating: super-resolution and supreme robustness
Pavel Sidorenko, Oren Lahav, Zohar Avnat +1
Frequency-resolved optical gating (FROG) is probably the most popular technique for complete characterization of ultrashort laser pulses. In FROG, a reconstruction algorithm retrie…
Sparse Phase Retrieval from Short-Time Fourier Measurements
Yonina C. Eldar, Pavel Sidorenko, Dustin G. Mixon +2
We consider the classical 1D phase retrieval problem. In order to overcome the difficulties associated with phase retrieval from measurements of the Fourier magnitude, we treat rec…
High-order harmonics with frequency-varying polarization within each harmonic
Avner Fleischer, Ofer Kfir, Pavel Sidorenko +1
We predict high-order harmonics in which the polarization within the spectral bandwidth of each harmonic varies continuously and significantly. For example, the interaction of coun…
Does high harmonic generation conserve angular momentum?
Avner Fleischer, Ofer Kfir, Tzvi Diskin +2
High harmonic generation (HHG) is a unique and useful process in which infrared or visible radiation is frequency up converted into the extreme ultraviolet and x ray spectral regio…