Focusing through dynamic tissue with millisecond digital optical phase conjugation: supplementary material
نویسندگان
چکیده
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-shot binary phase retrieval. © 2015 Optical Society of America
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 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 کاملFocusing light through scattering media by full-polarization digital optical phase conjugation.
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 کاملOptical Phase Conjugation with Less Than a Photon per Degree of Freedom.
We demonstrate experimentally that optical phase conjugation can be used to focus light through strongly scattering media even when far less than a photon per optical degree of freedom is detected. We found that the best achievable intensity contrast is equal to the total number of detected photons, as long as the resolution of the system is high enough. Our results demonstrate that phase conju...
متن کاملMethod for auto-alignment of digital optical phase conjugation systems based on digital propagation.
Optical phase conjugation (OPC) has enabled many optical applications such as aberration correction and image transmission through fiber. In recent years, implementation of digital optical phase conjugation (DOPC) has opened up the possibility of its use in biomedical optics (e.g. deep-tissue optical focusing) due to its ability to provide greater-than-unity OPC reflectivity (the power ratio of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015