Rotation of microscopic objects in fiber optic trap

Bryan J. Black; Samarendra K. Mohanty

doi:10.1117/12.909568

9 February 2012 Rotation of microscopic objects in fiber optic trap

Bryan J. Black, Samarendra K. Mohanty

Proceedings Volume 8225, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues X; 82250B (2012) https://doi.org/10.1117/12.909568
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

Due to easy integration with microfluidic devices, fiber optical trapping is finding increasing use to immobilize microscopic objects for physical and spectroscopic analysis of samples in solution. Though conventional microscope objective based laser spanners (based on transfer of spin or orbital angular momentum) are being employed for rotational manipulation of microscopic objects, the working distance inside microfluidic channel is limited in depth. Recently, we have demonstrated fiber optic tweezers for in-depth trapping of microscopic objects. Here, we demonstrate the development of a fiber optic spanner for rotation of microscopic objects. This single-mode fiber optics based method does not require special structure or optical properties of the sample to be rotated. Trapping and simultaneous rotation of microscopic objects around axis perpendicular to optic axis could be achieved. The rotation speed of the trapped object could be changed by adjusting the laser beam power coupled to the fiber optic trap. Since the fiber optic spanner could be easily integrated onto a microfluidic platform, the proposed configuration can find potential applications in lab-on-achip devices and tomographic imaging.

Citation Download Citation

Bryan J. Black and Samarendra K. Mohanty "Rotation of microscopic objects in fiber optic trap", Proc. SPIE 8225, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues X, 82250B (9 February 2012); https://doi.org/10.1117/12.909568

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available