Publications (10)
Generation of Bright and Controllable Isolated Attosecond X-Ray Pulses from Synchronized Mid-Infrared and Ultra-short Ultraviolet Laser Fields
Davis Robinson, Kyle A. Hamer, Chelsea Kincaid +2
We investigate, by solving the time-dependent Schrödinger equation in the single-active-electron approximation in helium, a two-color scheme for tabletop high-order harmonic gener…
Single-shot measurement of few-cycle optical waveforms on a chip
Yangyang Liu, John E. Beetar, Jonathan Nesper +2
The measurement of transient optical fields has proven critical to understanding the dynamical mechanisms underlying ultrafast physical and chemical phenomena, and is key to realiz…
Crystal Symmetry and Polarization of High-order Harmonics in ZnO
Shicheng Jiang, Shima Gholam-Mirzaei, Erin Crites +5
We carried out a joint theoretical and experimental study of the polarization of high-order harmonics generated from ZnO by intense infrared laser pulses. Experimentally we found t…
Dramatic enhancement of supercontinuum generation in elliptically-polarized laser filaments
Shermineh Rostami, Michael Chini, Khan Lim +6
Broadband laser sources based on supercontinuum generation by femtosecond laser filamentation have enabled applications from stand-off sensing and spectroscopy to the generation an…
Charged-particle control via spatio-temporally tailored pulses from gas-based nonlinear optics
Hao Zhang, Joshua Mann, James Rosenzweig +2
Gas-filled waveguides enable few-cycle, spatio-temporally coupled (STC) pulses with programmable structure, opening new routes to control charged particles with optical fields. Thi…
Ultrafast relaxation of acoustic and optical phonons in a topological nodal-line semimetal ZrSiS
Yangyang Liu, Gyanendra Dhakal, Anup Pradhan Sakhya +7
Despite being the most studied nodal line semimetal, a clear understanding of the transient state relaxation dynamics and the underlying mechanism in ZrSiS is lacking. Using time a…
Extreme Ultraviolet Time- and Angle-Resolved Photoemission Spectroscopy with 21.5 meV Resolution using High-Order Harmonic Generation from a Turn-Key Yb:KGW Amplifier
Yangyang Liu, John E. Beetar, Md Mofazzel Hosen +11
Characterizing and controlling electronic properties of quantum materials require direct measurements of non-equilibrium electronic band structures over large regions of momentum s…
High-harmonic generation in amorphous solids
Yong Sing You, Yanchun Yin, Yi Wu +7
High-order harmonic generation (HHG) in isolated atoms and molecules has been widely utilized in extreme ultraviolet (XUV) photonics and attosecond pulse metrology. Recently, HHG h…
Broadband Isolated Attosecond Pulses: Generation, Characterization, and Applications
Michael Chini, Kun Zhao, Zenghu Chang
The generation of the shortest isolated attosecond pulses requires both broad spectral bandwidth and control of the spectral phase. Rapid progress has been made in both aspects, le…
Multi-Octave Supercontinuum Generation and Frequency Conversion based on Rotational
John E. Beetar, M. Nrisimhamurty, Tran-Chau Truong +6
The field of attosecond science was first enabled by nonlinear compression of intense laser pulses to a duration below two optical cycles. Twenty years later, creating such short p…