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Three-dimensional subpixel estimation in holographic position measurement of an optically trapped nanoparticle |
Applied Optics, Vol. 52, Issue 1, pp. A216-A222 (2013)
http://dx.doi.org/10.1364/AO.52.00A216
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Abstract
We propose three-dimensional (3D) subpixel estimation in the position measurement of a nanoparticle held in optical tweezers in water by using an in-line, low-coherence digital holographic microscope. The 3D subpixel estimation was performed with the addition of axial subpixel estimation to the lateral subpixel estimation introduced in our previous work [Appl. Opt. 50, H183 (2011)]. The axial subpixel estimation allowed the step length in the diffraction calculation of a hologram to be increased to
© 2012 Optical Society of America
OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(050.1970) Diffraction and gratings : Diffractive optics
(090.1995) Holography : Digital holography
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
(100.4999) Image processing : Pattern recognition, target tracking
History
Original Manuscript: August 7, 2012
Revised Manuscript: October 7, 2012
Manuscript Accepted: October 7, 2012
Published: November 27, 2012
Virtual Issues
Vol. 8, Iss. 2 Virtual Journal for Biomedical Optics
Citation
Akira Sato, Quang Duc Pham, Satoshi Hasegawa, and Yoshio Hayasaki, "Three-dimensional subpixel estimation in holographic position measurement of an optically trapped nanoparticle," Appl. Opt. 52, A216-A222 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-1-A216
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