title: Photoacoustic-guided convergence of light through optically diffusive media.
abstract: We demonstrate that laser beams can be converged toward a light-absorbing target through optically diffusive media by using photoacoustic-guided interferometric focusing. The convergence of light is achieved by shaping the wavefront of the incident light with a deformable mirror to maximize the photoacoustic signal, which is proportional to the scattered light intensity at the light absorber.
authors.affiliation: Department of Physics and Astronomy, Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, USA.
authors.forename: Fanting
authors.initials: F
authors.lastname: Kong
authors.forename: Ronald H
authors.initials: RH
authors.lastname: Silverman
authors.forename: Liping
authors.initials: L
authors.lastname: Liu
authors.forename: Parag V
authors.initials: PV
authors.lastname: Chitnis
authors.forename: Kotik K
authors.initials: KK
authors.lastname: Lee
authors.forename: Y C
authors.initials: YC
authors.lastname: Chen
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007368:Interferometry / Q000295:instrumentation*; D007834:Lasers; D007909:Lenses; D008027:Light; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation*; D010363:Pattern Recognition, Automated / Q000379:methods*