Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques
Holographic spectroscopy is highlighted as a powerful tool for the analysis of photosensitive materials with pronounced alterations of the complex permittivity over a broad range in the visible spectrum, due to the advances made both in the fields of advanced holographic media and highly tunable las...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-01-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/6/1/334 |
| _version_ | 1811276246600908800 |
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| author | Kay-Michael Voit Mirco Imlau |
| author_facet | Kay-Michael Voit Mirco Imlau |
| author_sort | Kay-Michael Voit |
| collection | DOAJ |
| description | Holographic spectroscopy is highlighted as a powerful tool for the analysis of photosensitive materials with pronounced alterations of the complex permittivity over a broad range in the visible spectrum, due to the advances made both in the fields of advanced holographic media and highly tunable lasers systems. To analytically discuss consequences for in- and off-Bragg reconstruction, we revised Kogelnik’s coupled wave theory strictly on the basis of complex permittivities. We extended it to comply with modern experimental parameters such as out-of-phase mixed holograms and highly modulated gratings. A spatially modulated, wavelength-dependent permittivity that superimposes a spatially homogeneous wavelength-dependent ground state spectrum is taken into account for signal wave reconstruction with bulky elementary mixed gratings as an example. The dispersion characteristics of the respective diffraction efficiency is modelled for color-center-absorption and absorption of strongly localized carriers. As an example for the theoretical possibilities of our newly derived set of equations, we present a quantitative analysis of the Borrmann effect connected to out-of-phase gratings, providing easier and more intuitive methods for the derivation of their grating parameters. |
| first_indexed | 2024-04-12T23:53:04Z |
| format | Article |
| id | doaj.art-f54d3faf6b0842c8a18fdc52328f41cd |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T23:53:04Z |
| publishDate | 2013-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f54d3faf6b0842c8a18fdc52328f41cd2022-12-22T03:11:37ZengMDPI AGMaterials1996-19442013-01-016133435810.3390/ma6010334Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic TechniquesKay-Michael VoitMirco ImlauHolographic spectroscopy is highlighted as a powerful tool for the analysis of photosensitive materials with pronounced alterations of the complex permittivity over a broad range in the visible spectrum, due to the advances made both in the fields of advanced holographic media and highly tunable lasers systems. To analytically discuss consequences for in- and off-Bragg reconstruction, we revised Kogelnik’s coupled wave theory strictly on the basis of complex permittivities. We extended it to comply with modern experimental parameters such as out-of-phase mixed holograms and highly modulated gratings. A spatially modulated, wavelength-dependent permittivity that superimposes a spatially homogeneous wavelength-dependent ground state spectrum is taken into account for signal wave reconstruction with bulky elementary mixed gratings as an example. The dispersion characteristics of the respective diffraction efficiency is modelled for color-center-absorption and absorption of strongly localized carriers. As an example for the theoretical possibilities of our newly derived set of equations, we present a quantitative analysis of the Borrmann effect connected to out-of-phase gratings, providing easier and more intuitive methods for the derivation of their grating parameters.http://www.mdpi.com/1996-1944/6/1/334holographic spectroscopyholographic materialscoupled-wave theorymixed gratingsout-of-phase gratingsBorrmann effectbeam-coupling analysisdiffraction efficiency |
| spellingShingle | Kay-Michael Voit Mirco Imlau Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques Materials holographic spectroscopy holographic materials coupled-wave theory mixed gratings out-of-phase gratings Borrmann effect beam-coupling analysis diffraction efficiency |
| title | Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques |
| title_full | Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques |
| title_fullStr | Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques |
| title_full_unstemmed | Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques |
| title_short | Holographic Spectroscopy: Wavelength-Dependent Analysis of Photosensitive Materials by Means of Holographic Techniques |
| title_sort | holographic spectroscopy wavelength dependent analysis of photosensitive materials by means of holographic techniques |
| topic | holographic spectroscopy holographic materials coupled-wave theory mixed gratings out-of-phase gratings Borrmann effect beam-coupling analysis diffraction efficiency |
| url | http://www.mdpi.com/1996-1944/6/1/334 |
| work_keys_str_mv | AT kaymichaelvoit holographicspectroscopywavelengthdependentanalysisofphotosensitivematerialsbymeansofholographictechniques AT mircoimlau holographicspectroscopywavelengthdependentanalysisofphotosensitivematerialsbymeansofholographictechniques |