Spatial light modulators based on chalcogenide glass photoconductor/liquid-crystal structure operating in pulse regime

Vladimirov, Fiodor L.; Chaika, Aleksander N.; Pletneva, N. I.; Morichev, I. E.; Collings, N.

doi:10.1117/12.308844

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We can estimate influencing dimension of such masks on the PNR on the output of a correlator. Using Eqs (8) and (9), the PNR can be expressed as…”

Section: Random Phase Masksmentioning

confidence: 99%

“…To study the performance of transformed PMs as optical marks in an optical JTC containing an OASLM in a frequency domain, we have developed the OASLM JTC experimental setup. In this setup, we used the OASLM based on the chalcogenide glass photoconductor nematic liquid crystal (CGP-NLC) structure [8]. The reference and transformed PMs were entered to the JTC input plane.…”

Section: Optically Addressed Slm Jtcmentioning

confidence: 99%

“…The OASLM based on the chalcogenide glass photoconductor nematic liquid crystal (CGP-NLC) structure has high sensitivity and good resolution. High sensitivity (up to 0.01 µW/cm 2 ) makes it possible to input images in coherent optical processor directly, without an intermedi- (2); M = 24 3; M = 32 4; M = 64 5; M = 128 6; M = 256 7; M = 512 (8). ate TV channel.…”

Section: Optically Adressed Slmmentioning

confidence: 99%

See 2 more Smart Citations

Performance of optical and hybrid joint transform correlators for tasks of optical security

Muravsky¹

2002

Semicond. Phys. Quantum Electron. Optoelectron.

View full text Add to dashboard Cite

Performance of optical and hybrid joint transform correlators (JTCs) for security verification of optical marks containing transformed phase masks (PMs) is studied. The peakto-noise ratio (PNR) and relative intensity of correlation peaks are selected as basic criteria for comparative analysis of such two types of JTCs. The theoretical model of an interference noise produced as a result of an input and reference binary PMs cross-correlation on a conventional JTC output is developed. The optically addressed spatial light modulator (OASLM) based on the chalcogenide glass photoconductor nematic liquid crystal structure is considered. The experimental setup of an OASLM JTC is designed on the basis of this SLM. The relations a PNR and relative intensity versus an effective focal length of an optical Fourier processor are studied and the basic reasons limiting efficiency of the setup are analyzed. The optoelectronic device for identification of credit cards based on a hybrid optical-digital JTC architecture is built. The conditions of a joint power spectrum recording by a CCD-camera in this device are investigated. The concluding about expediency of OASLM JTC and optoelectronic device usage for different security applications is made.

show abstract

“…We can estimate influencing dimension of such masks on the PNR on the output of a correlator. Using Eqs (8) and (9), the PNR can be expressed as…”

Section: Random Phase Masksmentioning

confidence: 99%

Section: Optically Addressed Slm Jtcmentioning

confidence: 99%

Section: Optically Adressed Slmmentioning

confidence: 99%

See 1 more Smart Citation

Performance of optical and hybrid joint transform correlators for tasks of optical security

Muravsky¹

2002

Semicond. Phys. Quantum Electron. Optoelectron.

View full text Add to dashboard Cite

show abstract

Spatial light modulator based on hydrogenated amorphous silicon/deformed-helix ferroelectric liquid crystal structure: Influence of dielectric mirror

Vladimirov¹,

Чайка²,

Collings³

2000

Ferroelectrics

Self Cite

View full text Add to dashboard Cite

Spatial light modulator based on hydrogenated amorphous silicon/ deformed-helix ferroelectric liquid crystal structure: Influence of dielectric mirror, Ferroelectrics, 246:1, 269-277, The paper presents results on the comparative study of the two modes of the Optically Addressed SLMs based on the amorphous hydrogenated silicon -ferroelectric liquid crystal structure: the transmissive mode SLM and the reflective mode SLM with dielectric mirror. The FLC was used in DHF-mode.

show abstract

<title>Comparative analysis of optical and hybrid joint transform correlators for security applications</title>

et al. 2000

View full text Add to dashboard Cite

Spatial light modulators based on chalcogenide glass photoconductor/liquid-crystal structure operating in pulse regime

Cited by 4 publications

References 0 publications

Performance of optical and hybrid joint transform correlators for tasks of optical security

Performance of optical and hybrid joint transform correlators for tasks of optical security

Spatial light modulator based on hydrogenated amorphous silicon/deformed-helix ferroelectric liquid crystal structure: Influence of dielectric mirror

<title>Comparative analysis of optical and hybrid joint transform correlators for security applications</title>

Contact Info

Product

Resources

About