Spectral holes in photorefractive LiNbO3:Er3+ and LiNbO3:Tb3+ single crystals
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
2004
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| _version_ | 1876461784654675968 |
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| author | E. Alvarez |
| author_facet | E. Alvarez |
| contents | Spectral holes in photorefractive LiNbO3:Er3+ and LiNbO3:Tb3+ single crystals E. Alvarez R. Sosa I. Foldvari A. Muñoz F K Polgar A. Peter Física, Astronomía y Matemáticas Litihum Niobate (LiNbO3) is a paradigmatic photorefractive material. It provided the first experimental evidence of the photorefractive effect and still maintains a key position in the field. It has been extensively investigated as holographic media. One of the most important problems in the holographic information storage is that of fixing the information. A promising technique is to use two-color holography in which charge generation occurs by means of atwo-step photoionization with two-color light. Several research groups have recently demonstrated the bipolaronbased two color recording in undoped and doped LiNbO3 with UV, blue and green gating lights. Moreover,nonvolatile recording has been reported in LiNbO3:Er3+ and LiNbO3:Tb3+ under uncoherent light exposition to UV and blue-green light. However, the role of the Tb and Er ions in the photorefractive process has not been completelyunderstood. Due to the importance of provide spectroscopic information on the optical properties of these materials, in order to lead to better device performance, the aim of this letter is to present the results of an experimental study on the effects of the Er and Tb on the optical properties of LiNbO3. Evidence of spectral dips appearing in the blueintrinsic emission of the host LiNbO3 to support the identification of an active host-ion radiative energy transfer mechanism in our single crystal samples. 2004 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94217404 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.4 Vol.17 |
| format | Artículo científico |
| id | redalyc_94217404 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. |
| spellingShingle | Spectral holes in photorefractive LiNbO3:Er3+ and LiNbO3:Tb3+ single crystals E. Alvarez Física, Astronomía y Matemáticas Spectral holes in photorefractive LiNbO3:Er3+ and LiNbO3:Tb3+ single crystals E. Alvarez R. Sosa I. Foldvari A. Muñoz F K Polgar A. Peter Física, Astronomía y Matemáticas Litihum Niobate (LiNbO3) is a paradigmatic photorefractive material. It provided the first experimental evidence of the photorefractive effect and still maintains a key position in the field. It has been extensively investigated as holographic media. One of the most important problems in the holographic information storage is that of fixing the information. A promising technique is to use two-color holography in which charge generation occurs by means of atwo-step photoionization with two-color light. Several research groups have recently demonstrated the bipolaronbased two color recording in undoped and doped LiNbO3 with UV, blue and green gating lights. Moreover,nonvolatile recording has been reported in LiNbO3:Er3+ and LiNbO3:Tb3+ under uncoherent light exposition to UV and blue-green light. However, the role of the Tb and Er ions in the photorefractive process has not been completelyunderstood. Due to the importance of provide spectroscopic information on the optical properties of these materials, in order to lead to better device performance, the aim of this letter is to present the results of an experimental study on the effects of the Er and Tb on the optical properties of LiNbO3. Evidence of spectral dips appearing in the blueintrinsic emission of the host LiNbO3 to support the identification of an active host-ion radiative energy transfer mechanism in our single crystal samples. 2004 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94217404 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.4 Vol.17 |
| title | Spectral holes in photorefractive LiNbO3:Er3+ and LiNbO3:Tb3+ single crystals |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=94217404 |