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Spiral interferometry
Abstract
We present a surprising modification of optical interferometry. A so-called spiral phase element in the beam path of a standard microscope results in an interferogram of phase samples, for which the interference fringes have the shape of spirals instead of closed contour lines as in traditional interferograms. This configuration overrides the basic problem of interferometry, i.e., that elevations and depressions cannot be distinguished. Therefore a complete sample profile can be reconstructed from a single exposure, promising, e.g., high-speed metrology with a single laser pulse. The method is easy to implement, it does not require a spatially separated reference beam, and it is optimally stable against environmental noise.
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Citations
Cited by
Orbital angular momentum 25 years on [Invited]
Padgett, M. J. (2017) · Optics Express · doi:10.1364/oe.25.011265 · Cited by 837
Chapter 5 Singular Optics: Optical Vortices and Polarization Singularities
Dennis, M. R., O'Holleran, K., & Padgett, M. J. (2009) · Progress in Optics · doi:10.1016/s0079-6638(08)00205-9 · Cited by 666
Metadata
- Authors
- Fürhapter, S., Jesacher, A., Bernet, S., & Ritsch-Marte, M.
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2005-08-01
- Volume
- 30
- Issue
- 15
- Pages
- 1953
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W4244014383
- Cited by
- 295
- References
- 0
- FWCI
- 5.98
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fürhapter, S., Jesacher, A., Bernet, S., & Ritsch-Marte, M. (2005). Spiral interferometry. Optics Letters. https://doi.org/10.1364/ol.30.001953
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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