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Dynamic axial-position control of a laser-trapped particle by wave-front modification.

Abstract:

The axial position of a laser-trapped particle has been controlled by modification of the wave front by means of a membrane deformable mirror. The mirror gives wave-front modulation in terms of Zernike polynomials. By modulation of the Zernike defocus term we can modulate the particle position under conditions of laser trapping. A polystyrene particle of 1-microm diameter was moved along the optical axis direction for a distance of 2370 nm in minimum steps of 55.4 nm. We also demonstrated par...

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Publication status:
Published

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Publisher copy:
10.1364/ol.28.000465

Authors


Sugiura, T More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
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Journal:
Optics letters
Volume:
28
Issue:
6
Pages:
465-467
Publication date:
2003-03-05
DOI:
EISSN:
1539-4794
ISSN:
0146-9592
URN:
uuid:0949e979-3c25-43c3-a7d8-a84249173195
Source identifiers:
63102
Local pid:
pubs:63102
Language:
English

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