Proceedings ArticleDOI
Compact architecture for holographic systems
Demetri Psaltis,J.-J. Drolet,G. Barbastathis,E. Chuang +3 more
- Vol. 1, pp 158-159
Reads0
Chats0
TLDR
In this article, an angularly multiplexed integrated read/write memory system is described, which integrates the various system components very closely to the crystal by using a smart pixel array and making use of phase-conjugate read-out to eliminate the need for imaging optics.Abstract:
The holographic memory system we describe here integrates the various system components very closely to the crystal by using a smart pixel array and making use of phase-conjugate read-out to eliminate the need for imaging optics. This significantly reduces the alignment requirements and the number of required components. Our angularly multiplexed integrated read/write memory system is shown. An optoelectronic integrated circuit (OEIC) performing the functions of a spatial light modulator and a detector array is attached to the face of a 900-geometry photorefractive crystal perpendicular to the axis of the signal beam, while liquid crystal beam steerers are attached to the two adjacent faces that intersect the reference beam (the beam steerer behind the crystal is not visible in the figure). These beam steerers address the angularly multiplexed memory. Holograms are recorded by signal beam interference.read more
Citations
More filters
Patent
High density random access memory in an intelligent electric device
TL;DR: In this paper, various techniques for using polymeric RAM, 1T-DRAM, enhanced SRAM, magnetoresistive RAM, organic RAM, chalcogenide RAM, holographic memory, PLEDM, single-electron RAM, fractal cluster glass memory and other technologies in energy devices with high-endurance, highdensity, high-capacity, non-volatile, solid-state or removable memories.
Patent
Structures having a substrate with a cavity and having an integrated circuit bonded to a contact pad located in the cavity
TL;DR: In this paper, conductive lines passing through the vias connect the contact pads in the cavity to contact pads on another side of the substrate and provide an escape or pressure relief path for material filling the cavity.
Patent
Integrated optical multiplexer and demultiplexer for wavelength division transmission of information
TL;DR: In this paper, a multiplexer/demultiplexer is provided for optical interconnection between electronic components on an integrated circuit chip, which includes a substrate formed with an array of photo emitters/detectors and conditioning electronics coupled thereto.
Patent
Authentication system and method
TL;DR: In this paper, an authentication system using a correlator that correlates an input with a reference wherein at least one of the input and reference comprises a phase volume mask having structures, preferably points, that are each less than about six microns in size and can have an aspect ratio (AR) greater than 1:1 so as to produce a phase encoded random pattern having millions of combinations in a mask that is as small as one square millimeter.
Patent
Reflective coherent spatial light modulator
TL;DR: In this paper, a reflective coherent spatial light modulator (RCSLM) is proposed, which includes a subwavelength resonant grating structure (SWS), the SWS having a plurality of areas defining the plurality of pixels.
References
More filters
Patent
Active pixel sensor with intra-pixel charge transfer
TL;DR: In this paper, an imaging device is formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary MOS semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the substrate for accumulating photo-generated charge in an underlying portion of the substrate, a readout circuit including at least an output field effect transistor formed in the substrate and a charge coupled device section formed on the substrate adjacent the photrogate having a sensing node connected to the output transistor and at least one charge coupled
Journal ArticleDOI
Self-pumped, continuous-wave phase conjugator using internal reflection
TL;DR: Continuous-wave phase conjugation of an image-bearing beam is demonstrated using a single-domain crystal of BaTiO(3) and nothing else and has a phase-conjugate reflectivity of 30%.
Journal ArticleDOI
CMOS active pixel image sensor
TL;DR: In this paper, a 2.0 /spl mu/m double-poly, double-metal foundry CMOS active pixel image sensor is reported, which uses TTL compatible voltages, low noise and large dynamic range, and is useful in machine vision and smart sensor applications.
Patent
Modulator-based photonic chip-to-chip interconnections for dense three-dimensional multichip module integration
TL;DR: In this article, a planar-waveguide-based optical power bus is used to provide a parallel array of beams to read out a modulator array that is flip-chip bonded to each silicon substrate.
Patent
Photorefractive systems and methods
George Rakuljic,Amnon Yariv +1 more
TL;DR: In this article, a new type of holographic recording in photorefractive crystals is disclosed, termed orthogonal data storage, in which counter-propagating, reflection mode holograms are wavelength multiplexed to form gratings lying along a common axis.
Related Papers (5)
Optical interconnection for holographic memories and method for using the same
Kevin M. Flood,David C. Driscoll +1 more