Division-of-focal-plane spectral-polarization imaging sensor
نویسندگان
چکیده
We have designed, fabricated and tested a division-of-focal-plane spectral-polarization imaging sensor by the monolithic integration of aluminum nanowire linear polarization filters to a spectrally sensitive CMOS imaging array. The sensor has a pixel pitch of 5.0 μm and an imaging array size of 168 by 256 pixel elements. Each pixel comprises three layers of vertically stacked photodetectors, each of which has a particular spectral sensitivity. This sensor is novel in that it can perceive co-registered spectral and polarimetric information in real time. In this paper, we present both a theoretical overview of the operation of this imaging sensor as well as experimental measurements from the fabricated sensor.
منابع مشابه
Complementary fluorescence-polarization microscopy using division-of-focal-plane polarization imaging sensor.
Fluorescence microscopy offers high sensitivity for disease diagnosis. However, little structural information is revealed by this method, requiring another technique to localize the source of fluorescence. We developed a complementary fluorescence-polarization microscope. We used a division-of-focal-plane charge coupled device polarization sensor to enable real-time video rate polarization imag...
متن کاملSnapshot linear-Stokes imaging spectropolarimeter using division-of-focal-plane polarimetry and integral field spectroscopy
In this paper, the design and experimental demonstration of a snapshot linear-Stokes imaging spectropolarimeter (SLSIS) is presented. The SLSIS, which is based on division-of-focal-plane polarimetry with four parallel linear polarization channels and integral field spectroscopy with numerous slit dispersive paths, has no moving parts and provides video-rate Stokes-vector hyperspectral datacubes...
متن کاملImage interpolation and denoising for division of focal plane sensors using Gaussian processes.
Image interpolation and denoising are important techniques in image processing. These methods are inherent to digital image acquisition as most digital cameras are composed of a 2D grid of heterogeneous imaging sensors. Current polarization imaging employ four different pixelated polarization filters, commonly referred to as division of focal plane polarization sensors. The sensors capture only...
متن کاملImplementation of Real-Time Calibration of Polarization Imaging Sensors
Recent breakthroughs in nanofabrication techniques have led to development of sophisticated Division-of-Focal-Plane (DoFP) polarization imaging sensors. One such technique allows the fabrication of nanowire filters fabricated directly on the imaging sensor itself. This technique can be used to fabricate robust DoFP polarization imaging sensors. However, the polarization information captured by ...
متن کاملPupil plane multiplexing for multi-domain imaging sensors
We describe an approach to polarimetric imaging based on a unique folded imaging system with an annular aperture. The novelty of this approach lies in the system’s collection architecture, which segments the pupil plane to measure the individual polarimetric components contributing to the Stokes vectors. Conventional approaches rely on time sequential measurements (time-multiplexed) using a con...
متن کامل