Focusing through dynamic tissue with millisecond digital optical phase conjugation
نویسندگان
چکیده
منابع مشابه
Focusing through dynamic tissue with millisecond digital optical phase conjugation.
Digital optical phase conjugation (DOPC) is a new technique employed in wavefront shaping and phase conjugation for focusing light through or within scattering media such as biological tissues. DOPC is particularly attractive as it intrinsically achieves a high fluence reflectivity in comparison to nonlinear optical approaches. However, the slow refresh rate of liquid crystal spatial light modu...
متن کاملFocusing through dynamic tissue with millisecond digital optical phase conjugation: supplementary material
This document provides supplementary information to “Focusing through dynamic tissue with millisecond digital optical phase conjugation,” http://dx.doi.org/10.1364/optica.2.000728. It includes a detailed diagram of the optical setup and details pertaining to the framework of binary phase digital optical phase conjugation (DOPC) with theoretical calculations for PBR and an algorithm for single-s...
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Digital optical phase conjugation (DOPC) is an emerging technique for focusing light through or within scattering media such as biological tissue. Since DOPC systems are based on time reversal, they benefit from collecting as much information about the scattered light as possible. However, existing DOPC techniques record and subsequently phase-conjugate the scattered light in only a single-pola...
متن کاملFocusing and scanning light through a multimode optical fiber using digital phase conjugation.
We demonstrate for the first time to our knowledge a digital phase conjugation technique for generating a sharp focus point at the end of a multimode optical fiber. A sharp focus with a contrast of 1800 is experimentally obtained at the tip of a 105 μm core multimode fiber. Scanning of the focal point is also demonstrated by digital means. Effects from illumination and fiber bending are addressed.
متن کاملOptical phase conjugation (OPC)-assisted isotropic focusing.
Isotropic optical focusing - the focusing of light with axial confinement that matches its lateral confinement, is important for a broad range of applications. Conventionally, such focusing is achieved by overlapping the focused beams from a pair of opposite-facing microscope objective lenses. However the exacting requirements for the alignment of the objective lenses and the method's relative ...
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ژورنال
عنوان ژورنال: Optica
سال: 2015
ISSN: 2334-2536
DOI: 10.1364/optica.2.000728