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Scanning-force microscope based on an optical trap
Abstract
An optically trapped prolate glass stylus is the force-sensing element of a novel scanning-force microscope. Stylus displacement is detected with the use of the forward scatter of the trapping laser beam. Radiation forces owing to the three-dimensional intensity distribution near the focus permit the stylus to be both positioned with fine control and oriented along the z (optic) axis. Details of 20-nm size appear in traces recorded with a crude stylus in a trap formed with 1064-nm radiation. The spring constant of the optical-force transducer is below 10−4 N/m, which is to be compared with ∼0.1 N/m for typical mechanical cantilevers used in atomic-force microscopy. This gentler technique should improve the sensitivity of scanning-force microscopy for the imaging of soft samples in aqueous media.
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Citations
Cited by
Three-dimensional microfabrication with two-photon-absorbed photopolymerization
Maruo, S., Nakamura, O., & Kawata, S. (1997) · Optics Letters · doi:10.1364/ol.22.000132 · Cited by 1,952
Optical trapping and manipulation of nanostructures
Maragò, O. M., Jones, P. H., Gucciardi, P. G., Volpe, G., & Ferrari, A. C. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.208 · Cited by 1,043
Interference model for back-focal-plane displacement detection in optical tweezers
Gittes, F., & Schmidt, C. F. (1998) · Optics Letters · doi:10.1364/ol.23.000007 · Cited by 623
Tunable nanowire nonlinear optical probe
Nakayama, Y., Pauzauskie, P. J., Radenovic, A., Onorato, R. M., Saykally, R. J., Liphardt, J., & Yang, P. (2007) · Nature · doi:10.1038/nature05921 · Cited by 586
Construction of multiple-beam optical traps with nanometer-resolution position sensing
Visscher, K., Gross, S. P., & Block, S. M. (1996) · IEEE Journal of Selected Topics in Quantum Electronics · doi:10.1109/2944.577338 · Cited by 419
Metadata
- Authors
- Ghislain, L. P., & Webb, W. W.
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 1993-10-01
- Volume
- 18
- Issue
- 19
- Pages
- 1678
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2106112280
- Cited by
- 223
- References
- 0
- FWCI
- 3.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ghislain, L. P., & Webb, W. W. (1993). Scanning-force microscope based on an optical trap. Optics Letters. https://doi.org/10.1364/ol.18.001678
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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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