Original title: Measurement of the Optical Trap Stiffness
Authors: Jákl, Petr ; Jonáš, Alexandr ; Zemánek, Pavel ; Liška, M.
Document type: Papers
Conference/Event: Nové trendy ve fyzice, Brno (CZ), 2001-11-15 / 2001-11-16
Year: 2001
Language: eng
Abstract: An optical trap for dielectric microparticles is usually approximated by a parabolic potential well, whose profile is characterized by a single constant - trap stiffness. This stiffness can be estimated using several methods, including Fourier spectral analysis of the thermal noise of the trapped particle position, or method based on equipartition theorem. The principles of the trap calibration and experimental results are presented.
Keywords: Brownian motion; Optical tweezers; trap stiffness measurement
Project no.: CEZ:AV0Z2065902 (CEP), GA202/99/0959 (CEP), GA101/00/0974 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: Sborník příspěvků konference Nové trendy ve fyzice, ISBN 80-214-1992-X
Note: Související webová stránka: mailto:sasa@isibrno.cz

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0101038

Permalink: http://www.nusl.cz/ntk/nusl-29518


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Conference materials > Papers