Photorefractive Memories for Optical Processing

Duelli, Markus; Montemezzani, Germano; Zgonik, M.; Günter, Peter

doi:10.1007/978-3-540-49713-4_5

Cited by 5 publications

(14 citation statements)

References 158 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A setup performing both operations interchangeably is shown in. [ 218 ] As discussed in, [ 215 ] the implementation of volume holographic materials in the JFT confi guration imposes a decrease of the achievable space-bandwidth product due to restrictions from the necessity of obeying the Bragg-condition. Recently, an edge-enhanced shift-invariant matched fi lter-correlator based on PATPD was demonstrated.…”

Section: Injection Locking Of a Broadband Laser Sourcementioning

confidence: 99%

Organic Photorefractive Materials and Applications

2011

View full text Add to dashboard Cite

This review describes recent advances and applications in the field of organic photorefractive materials, an interesting area in the field of organic electronics and promising candidate for various aspects of photonic applications. We describe the current state of knowledge about the processes involved in the formation of photorefractive gratings in organic materials and focus on the chemical and photo‐physical aspects of the material structures employed in low glass‐transition temperature amorphous composites and organic photorefractive glasses. State‐of‐the art materials are highlighted and recent demonstrations of photonic applications relying on the reversible holographic nature of the photorefractive materials are discussed.

show abstract

Section: Injection Locking Of a Broadband Laser Sourcementioning

confidence: 99%

Organic Photorefractive Materials and Applications

2011

View full text Add to dashboard Cite

show abstract

“…The diffraction efficiency of the photorefractive material was determined by a degenerate four-wave mixing (DFWM) experiment. 7 Two coherent laser beams were irradiated on the sample in a tilted geometry with incident angles of 30 and 60°with respect to the normal sample. The writing beams both were s-polarized and had equal intensities of 60 mW/cm 2 .…”

Section: Measurementsmentioning

confidence: 99%

“…1,3,4 Holographic data storage is one promising application for photorefractive materials. [3][4][5][6][7] Holography involves the recording of the interference pattern between a signal beam carrying the information and a reference beam and retrieval of the stored information by illumination of a reference beam. It has been extensively applied to optical data storage because a large amount of data can be stored via various multiplexing methods and optical information can be retrieved with a high data-transfer rate due to the parallelism of optics.…”

Section: Introductionmentioning

confidence: 99%

“…5 Pattern recognition is another area where the parallelism of optics, that is, optical processing, provides a significant advantages over digital electronics. 7,8 It has been developed for security systems applications such as the identification of human pupils and fingerprints, rapid searching of huge database, navigation, image analysis, and so on. Because of its high photosensitivity, low cost, and high processability, photorefractive polymers have been considered as promising candidates for pattern-recognition systems.…”

Section: Introductionmentioning

confidence: 99%

“…Because of its high photosensitivity, low cost, and high processability, photorefractive polymers have been considered as promising candidates for pattern-recognition systems. 4,7,8 Until recently, the application of photorefractive materials to holographic data storage, phase conjugation, pattern recognition, image amplification, and so on have been demonstrated, and most studies have been confined to photorefractive inorganic crystals. 3 However, the widespread application of inorganic crystals has been limited by their high cost and poor processability, despite proof-of-principle demonstrations.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Applications of polymeric photorefractive material to reversible data storage and information processing

Chun¹,

Joo²,

Kim³

et al. 2003

J of Applied Polymer Sci

View full text Add to dashboard Cite

A polymeric photorefractive composite was prepared from a mixture of carbazole-substituted polysiloxane as a photoconducting medium, 2,4,7-trinitro-9-fluorenone as a photosensitizer, and 2-{3-[(E)-2-(dibutylamino)-1-ethenyl]-5,5-dimethyl-2-cyclohexenyliden} malononitrile as an optically nonlinear chromophore. This polymeric composite, with a thickness of 100 m, exhibited a high diffraction efficiency of 92% at a low applied electric field of 30 V/m, which corresponded a refractive index modulation of 3 ϫ 10 Ϫ3. Applications of this polymeric composite to reversible holographic data storage and pattern recognition were demonstrated. The three-dimensional image was recorded on our photorefractive film at an applied field of 30 V/m, and subsequently, a high quality image was reconstructed in a real-time operation. Pattern recognition was successfully demonstrated based on a joint-transform optical correlation.

show abstract

Nonlinear Optics with 2D Layered Materials

et al. 2018

View full text Add to dashboard Cite

2D layered materials (2DLMs) are a subject of intense research for a wide variety of applications (e.g., electronics, photonics, and optoelectronics) due to their unique physical properties. Most recently, increasing research efforts on 2DLMs are projected toward the nonlinear optical properties of 2DLMs, which are not only fascinating from the fundamental science point of view but also intriguing for various potential applications. Here, the current state of the art in the field of nonlinear optics based on 2DLMs and their hybrid structures (e.g., mixed-dimensional heterostructures, plasmonic structures, and silicon/fiber integrated structures) is reviewed. Several potential perspectives and possible future research directions of these promising nanomaterials for nonlinear optics are also presented.

show abstract

Photorefractive Memories for Optical Processing

Cited by 5 publications

References 158 publications

Organic Photorefractive Materials and Applications

Organic Photorefractive Materials and Applications

Applications of polymeric photorefractive material to reversible data storage and information processing

Nonlinear Optics with 2D Layered Materials

Contact Info

Product

Resources

About