Artículo
Abstract:
In this work we propose a method to improve the discrimination capability of joint transform correlators. The technique is mainly developed to apply in photorefractive joint transform correlators that use a liquid crystal spatial light modulator to display the input plane and a BSO crystal to record dynamically the joint transform plane. The discrimination capability of the system is increased by using a phase-encoded input in combination with the phase-only information of the reference. To this end we use the liquid crystal modulator working in a pure phase mode. We perform numerical simulations to show that the proposed method also improves the discrimination capability of correlators with conventional linear detection of the joint power spectrum. Experimental results obtained with our photorefractive correlator are shown. © 2002 Elsevier Science B.V. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Phase-only photorefractive joint transform correlator |
| Autor: | Iemmi, C.; La Mela, C. |
| Filiación: | Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| Palabras clave: | Image processing; Pattern recognition; Photorefractive correlators; Computer simulation; Image analysis; Light modulators; Liquid crystals; Pattern recognition; Photorefractive materials; Photorefractive correlators; Correlators |
| Año: | 2002 |
| Volumen: | 209 |
| Número: | 4-6 |
| Página de inicio: | 255 |
| Página de fin: | 263 |
| DOI: | http://dx.doi.org/10.1016/S0030-4018(02)01723-6 |
| Título revista: | Optics Communications |
| Título revista abreviado: | Opt Commun |
| ISSN: | 00304018 |
| CODEN: | OPCOB |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v209_n4-6_p255_Iemmi |
Referencias:
- White, J.O., Yariv, A., (1980) Appl. Phys. Lett., 37, p. 5
- Rajbenbach, H., Bann, S., Réfrégier, P., Joffre, Ph., Huignard, J., Buchkremer, H., Jensen, A., Lohman, G., (1992) Appl. Opt., 31, p. 5666
- Khoury, J., Cronin-Golomb, M., Gianino, P., Woods, C., (1994) J. Opt. Soc. A, 11, p. 2167
- Weaver, C.S., Goodman, J.W., (1966) Appl. Opt., 5, p. 1248
- Javidi, B., (1989) Appl. Opt., 28, p. 2358
- Javidi, B., Wang, J., Tang, Q., (1991) Appl. Opt., 30, p. 4234
- Inbar, H., Marom, E., (1993) Opt. Lett., 18, p. 1657
- Lu, G., Zhang, Z., Yu, F.T.S., (1995) Opt. Lett., 20, p. 1307
- Kotynski, R., Chalasinska-Macukow, K., (1996) J. Mod. Opt., 43, p. 295
- Ledesma, S., Iemmi, C., Campos, J., Yzuel, M.J., (1998) Opt. Commun., 151, p. 101
- Styczynski, K., Campos, J., Yzuel, M.J., Chalasinska-Macukow, K., (1995) Opt. Commun., 118, p. 193
- Horner, J.L., Gianino, P.D., (1984) Appl. Opt., 23, p. 812
- Cook, N.J., Carnicer, A., Vallmitjana, S., Juvells, I., Cartwright, C.M., Gillespie, W.A., (1998) J. Opt. Soc. Am. B, 15, p. 1977
- Vallmitjana, S., Carnicer, A., Martín-Badosa, E., Juvells, I., (1995) Appl. Opt., 34, p. 3942
- Günter, P., (1982) Phys. Rep., 93, p. 199
- Márquez, A., Iemmi, C., Escalera, J.C., Campos, J., Ledesma, S., Davis, J.A., Yzuel, M.J., (2001) Appl. Opt., 40, p. 2316
Citas:
---------- APA ----------
Iemmi, C. & La Mela, C. (2002) . Phase-only photorefractive joint transform correlator. Optics Communications, 209(4-6), 255-263.http://dx.doi.org/10.1016/S0030-4018(02)01723-6
---------- CHICAGO ----------
Iemmi, C., La Mela, C. "Phase-only photorefractive joint transform correlator" . Optics Communications 209, no. 4-6 (2002) : 255-263.http://dx.doi.org/10.1016/S0030-4018(02)01723-6
---------- MLA ----------
Iemmi, C., La Mela, C. "Phase-only photorefractive joint transform correlator" . Optics Communications, vol. 209, no. 4-6, 2002, pp. 255-263.http://dx.doi.org/10.1016/S0030-4018(02)01723-6
---------- VANCOUVER ----------
Iemmi, C., La Mela, C. Phase-only photorefractive joint transform correlator. Opt Commun. 2002;209(4-6):255-263.http://dx.doi.org/10.1016/S0030-4018(02)01723-6
