Polarization controlled fine structure of diffraction spots from an optically induced grating
- We report on the remote control of the fine structure of a diffraction spot from optically induced dual gratings within a photosensitive polymer film. The material contains azobenzene in the polymer side chains and develops a surface relief under two-beam holographic irradiation. The diffraction of a polarized probe beam is sensitive to the orientation of the azobenzene groups forming a permanently stored birefringence grating within the film. We demonstrate that the fine structure of the probe diffraction spot switches from a Gaussian to a hollow or a hollow to a "Saturn"-like structure by a change in polarization. This makes it potentially useful in photonic devices because the beam shape can be easily inverted by an external stimulus.
| Author details: | Joachim JelkenORCiDGND, Carsten HenkelORCiDGND, Svetlana SanterORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1063/1.5140067 |
| ISSN: | 0003-6951 |
| ISSN: | 1077-3118 |
| Title of parent work (English): | Applied physics letters |
| Publisher: | American Institute of Physics |
| Place of publishing: | Melville |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2020/02/04 |
| Publication year: | 2020 |
| Release date: | 2023/01/06 |
| Volume: | 116 |
| Issue: | 5 |
| Article number: | 051601 |
| Number of pages: | 4 |
| Funding institution: | Helmholtz Graduate School on Macromolecular Bioscience (Teltow, Germany) |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Peer review: | Referiert |
