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Peering into darkness with a vortex spatial filter
Abstract
I propose to use as a window the dark core of an optical vortex to examine a weak background signal hidden in the glare of a bright coherent source. Applications such as the detection of an astronomical object, forward-scattered radiation, and incoherent light are described whereby signal enhancements of at least 7 orders of magnitude may be achieved.
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Citations
Cited by
Orbital angular momentum: origins, behavior and applications
Yao, A. M., & Padgett, M. J. (2011) · Advances in Optics and Photonics · doi:10.1364/aop.3.000161 · Cited by 3,294
Orbital angular momentum 25 years on [Invited]
Padgett, M. J. (2017) · Optics Express · doi:10.1364/oe.25.011265 · Cited by 837
Light’s Orbital Angular Momentum
Padgett, M., Courtial, J., & Allen, L. (2004) · Physics Today · doi:10.1063/1.1768672 · Cited by 731
Spiral phase contrast imaging in microscopy
Fürhapter, S., Jesacher, A., Bernet, S., & Ritsch-Marte, M. (2005) · Optics Express · doi:10.1364/opex.13.000689 · Cited by 664
Foo, G., Swartzlander, G. A., & Palacios, D. (2005) · Frontiers in Optics · doi:10.1364/fio.2005.jwa22 · Cited by 530
Self-citation
Metadata
- Authors
- Swartzlander, G. A.
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2001-04-15
- Volume
- 26
- Issue
- 8
- Pages
- 497
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2023344834
- Cited by
- 244
- References
- 0
- FWCI
- 6.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Swartzlander, G. A. (2001). Peering into darkness with a vortex spatial filter. Optics Letters. https://doi.org/10.1364/ol.26.000497
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
