Directly determining orbital angular momentum of ultrashort Laguerre-Gauss pulses via autocorrelation measurement
arXiv:2204.04495 · doi:10.1002/lpor.202200260
Abstract
Autocorrelation measurement based on second-harmonic generation (SHG), the best-known technique for measuring the temporal duration of ultrashort pulses, could date back to the birth of ultrafast lasers. Here, we propose and experimentally demonstrate that such well-established technique can also be used to measure the orbital angular momentum of ultrashort Laguerre-Gauss (LG) pulses. By analysing the far-field pattern of the SHG signal, the full spatial structure of ultrashort LG pulses, including both azimuthal and radial indices, are unambiguously determined. Our results provide an important advancement for the well-established autocorrelation technique by extending it to reach its full potential in laser characterization, especially for structured ultrashort pulses.
References in corpus (22)
- Photonic Cyclone: spatiotemporal optical vortex with controllable transverse orbital angular momentum
- Light with a self-torque: extreme-ultraviolet beams with time-varying orbital angular momentum
- Free-space propagation of spatio-temporal optical vortices (STOVs)
- Hypergeometric-Gaussian Modes
- Creation and characterization of vector vortex modes for classical and quantum communication
- Attosecond XUV vortices from high-order harmonic generation
- Supertoroidal light pulses: Propagating electromagnetic skyrmions in free space
- High-dimensional quantum gates using full-field spatial modes of photons
- Nonseparable states of light: From quantum to classical
- Limitations to the determination of a Laguerre-Gauss spectrum via projective, phase-flattening measurement
- Conformal frequency conversion for arbitrary vectorial structured light
- Gouy-phase-mediated propagation variations and revivals of transverse structure in vectorially structured light
- Gouy phase-matched angular and radial mode conversion in four-wave mixing
- An upper limit to the orbital angular momentum of a vortex-carrying ultrashort pulse
- Radial modal transitions of Laguerre-Gauss modes during parametric upconversion: towards the full-field selection rule of spatial modes
- Pattern revivals from fractional Gouy phases in structured light
- Near-perfect measuring of full-field transverse-spatial modes of light
- Parametric upconversion of Ince-Gaussian modes
- Real-time Phase Conjugation of Vector Vortex Beams
- Effects of orbital angular momentum on few-cycle pulse shape: Coupling between the temporal and angular momentum degrees of freedom
- Propagation-invariant high-dimensional orbital angular momentum states
- Quantum teleportation of high-dimensional spatial modes: Towards an image teleporter
Cited by in corpus (5)
- Review: Graphene oxide 2D thin films for high performance nonlinear integrated photonics
- Observation of Anomalous Orbital Angular Momentum Conservation in Parametric Nonlinearity
- Toward arbitrary spin-orbit flat optics via structured geometric phase gratings
- Structured Light Modal Interface via Liquid-Crystal Planar Optics
- Single-shot, full characterization of the spatial wavefunction of light fields via Stokes tomography