Orbital angular momentum beam generation using a free-electron laser oscillator
arXiv:2007.15723 · doi:10.1364/OE.510649
Abstract
With wavelength tunability, free-electron lasers (FELs) are well-suited for generating orbital angular momentum (OAM) beams in a wide photon energy range. We report the first experimental demonstration of OAM beam generation using an oscillator FEL. Lasing around 458 nm, we have produced the four lowest orders of coherently mixed OAM beams with good beam quality, excellent stability, and substantial intracavity power. We have also developed a pulsed mode operation of the OAM beam with a highly reproducible temporal structure for a range of modulation frequencies from 1 to 30 Hz. This development can be extended to short wavelengths, for example to x-rays using a future x-ray FEL oscillator. The operation of such an OAM FEL also paves the way for the generation of OAM gamma-ray beams via Compton scattering.
References in corpus (23)
- Electromagnetic Force and Momentum
- Electromagnetic Angular Momentum
- Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular
- Quantized Rotation of Atoms From Photons with Orbital Angular Momentum
- Free-space quantum key distribution by rotation-invariant twisted photons
- Quantum information transfer from spin to orbital angular momentum of photons
- Generation of High-Energy Photons with Large Orbital Angular Momentum by Compton Backscattering
- The Vortex Phase Qubit: Generating Arbitrary, Counter-Rotating, Coherent Superpositions in Bose-Einstein Condensates via Optical Angular Momentum Beams
- Ultrafast generation of skyrmionic defects with vortex beams: printing laser profiles on magnets
- Angular Momentum of Twisted Radiation from an Electron in Spiral Motion
- Experimental Verification of Position-Dependent Angular-Momentum Selection Rules for Absorption of Twisted Light by a Bound Electron
- Hard X-ray helical dichroism of disordered molecular media
- Radiative Capture of Cold Neutrons by Protons and Deuteron Photodisintegration with Twisted Beams
- Doing spin physics with unpolarized particles
- Optical vortex driven charge current loop and optomagnetism in fullerenes
- Circular Dichroism of Twisted Photons in the Non-Chiral Atomic Matter
- Generating X-rays with orbital angular momentum in free-electron laser oscillator
- Tighter spots of light with superposed orbital angular momentum beams
- Atomic Spectroscopy with Twisted Photons: Separation of M1--E2 Mixed Multipoles
- Kinematic surprises in twisted particle collisions
- Delta baryon photoproduction with twisted photons
- On Generation of Photons Carrying Orbital Angular Momentum in the Helical Undulator
- Manipulation of Giant Multipole Resonances via Vortex Photons