Ptychographic amplitude and phase reconstruction of bichromatic vortex beams
We experimentally demonstrate that ptychographic coherent diffractive imaging can be used to simultaneously characterize the amplitude and phase of bichromatic orbital angular momenta-shaped vortex beams, which consist of a fundamental field, together with its copropagating second-harmonic field. In contrast to most other orbital angular momentum characterization methods, this approach solves for the complex field of a hyperspectral beam. Lastly, this technique can also be used to characterize other phase-structured illumination beams, and, in the future, will be able to be extended to other complex fields in the extreme ultraviolet or X-ray spectral regions, as well as to matter waves.
- Research Organization:
- Univ. of Colorado, Boulder, CO (United States). The Regents; Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); BBVA Foundation
- Grant/Contract Number:
- FG02-99ER14982
- OSTI ID:
- 1486899
- Alternate ID(s):
- OSTI ID: 1487214; OSTI ID: 1907877
- Journal Information:
- Optics Express, Journal Name: Optics Express Vol. 26 Journal Issue: 26; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 20 works
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