Abstract

We experimentally investigate the influence of geometric aberrations in optical tweezers using back focal plane interferometry. We found that the introduction of coma aberrations causes significant modification to the Brownian motion of the trapped particle, producing an apparent cross-coupling between the in-plane aberrated axis and the weaker propagation axis. This coupling is evidenced by the emergence of a second dominant low frequency Lorentzian feature in the position power spectral density. The effect on Brownian motion was confirmed using a secondary unaberrated probe beam, ruling out the possibility of systematic optical effects related to the detection system.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
3D calibration of microsphere position in optical tweezers using the back-focal-plane interferometry method

Wenqiang Li, Hanlin Zhang, Mengzhu Hu, Qi Zhu, Heming Su, Nan Li, and Huizhu Hu
Opt. Express 29(20) 32271-32284 (2021)

Holographic optical tweezers combined with back-focal-plane displacement detection

Ferran Marsà, Arnau Farré, Estela Martín-Badosa, and Mario Montes-Usategui
Opt. Express 21(25) 30282-30294 (2013)

Modeling and calibrating nonlinearity and crosstalk in back focal plane interferometry for three-dimensional position detection

Peng Cheng, Sissy M. Jhiang, and Chia-Hsiang Menq
Opt. Lett. 42(19) 3948-3951 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics