Fast near infra-red ferroelectric liquid crystal based Mueller matrix system for imaging and spectroscopy

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Near Infra-red Spectroscopy of V838 Monocerotis

Near IR, multi epoch, spectroscopic and photometric observations of the enigmatic, eruptive variable V838 Mon in the JHK bands are reported. One of unusual features of the spectra is the detection of several strong neutral TiI lines in emission in the K band. From the strength of these lines, the mass of the ejected envelope is estimated to be in the range 10−7 to 10−5 M . The spectra also show...

متن کامل

Time-resolved switching analysis of a ferroelectric liquid crystal by snapshot Mueller matrix polarimetry.

An experimental snapshot Mueller matrix polarimeter based on wavelength polarization coding is used to get a time-resolved description of electric-field-induced fast transition within a ferroelectric liquid-crystal cell. The parameters extracted from experimental Mueller matrices are linked to the molecule director distribution to further determine the average trajectory and the collective beha...

متن کامل

A frequency multiplexed near infra-red topography system for imaging functional activation in the brain

we have developed a novel near-infrared optical topography system that can acquire images at 10 frames per second. Sixteen laser diode sources (at 785 and 850 nm) are illuminated simultaneously, and each of 8 avalanche photodiode detectors records light from multiple sources. In this system, the contribution from each source is demultiplexed in software using fast Fourier transforms. This allow...

متن کامل

Fast-Response Infrared Ferroelectric Liquid Crystal Phase Modulators

A high speed phase modulator based on ferroelectric liquid crystal (FLC) is demonstrated. For uniform alignment and pure phase modulation, we propose a new FLC device using a short helical pitch material in a homeotropic alignment. This device is driven by periodic in-plane electrode stripes implemented on the surface of both cell substrates. As a result, we have obtained a large phase modulati...

متن کامل

Imaging linear polarimetry using a single ferroelectric liquid crystal modulator.

In the field of polarimetry, ferroelectric liquid crystal cells are mostly used as bistable polarization rotators suitable to analyze crossed polarizations. This paper shows that, provided such a cell is used at its nominal wavelength and correctly driven, its behavior is close to that of a tunable half-wave plate, and it can be used with much benefit in lightweight imaging polarimetric setups....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: EPJ Web of Conferences

سال: 2010

ISSN: 2100-014X

DOI: 10.1051/epjconf/20100506003