title: Manipulation and spectroscopy of a single particle by use of white-light optical tweezers.
abstract: We demonstrate, for the first time to our knowledge, three-dimensional (3D) trapping and manipulation of microscopic objects by use of supercontinuum white light generated from photonic crystal fibers. Furthermore, we show that the supercontinuum white-light optical tweezers used have the unique capability to perform optical scattering spectroscopy of a single 3D trapped object over a broad wavelength range. These novel tweezers can potentially open a promising avenue toward simultaneous manipulation and characterization of microscopic objects.
authors.affiliation: Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Kebin
authors.initials: K
authors.lastname: Shi
authors.forename: Zhiwen
authors.initials: Z
authors.lastname: Liu
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008027:Light; D008846:Micromanipulation / Q000295:instrumentation* / Q000379:methods; D008853:Microscopy / Q000295:instrumentation* / Q000379:methods; D008863:Microspheres; D010316:Particle Size; D013053:Spectrophotometry / Q000295:instrumentation* / Q000379:methods