Enhancing the inscription rate of surface relief gratings with an incoherent assisting light beam
A beam of light that is incoherent to the recording beams and has its polarization orthogonal to the recording beams is shown to assist the recording process of azo-functionalized polymers through the enhancement of trans–cis–trans cycling. Recording with s:s polarization has earlier been shown to r...
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| Published in: | Applied physics letters Vol. 84; no. 22; pp. 4517 - 4519 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
31-05-2004
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| Online Access: | Get full text |
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| Summary: | A beam of light that is incoherent to the recording beams and has its polarization orthogonal to the recording beams is shown to assist the recording process of azo-functionalized polymers through the enhancement of trans–cis–trans cycling. Recording with s:s polarization has earlier been shown to result in very small surface modulations. However, with the help of an incoherent assisting beam, it can record a large surface modulation with a diffraction efficiency of 20.7%. The incoherent assisting beam also leads to an acceleration of the grating formation rate for the recording beams with p:p and 45°:45° polarization. |
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| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.1757643 |