Design and evaluation of phase-deviation sensitive DOEs with possible application in SLM characterization
| dc.contributor.author | Milewski, Gabriel | |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskap | sv |
| dc.contributor.department | Chalmers University of Technology / Department of Microtechnology and Nanoscience | en |
| dc.date.accessioned | 2019-07-03T11:55:41Z | |
| dc.date.available | 2019-07-03T11:55:41Z | |
| dc.date.issued | 2005 | |
| dc.description.abstract | The spatial light modulator (SLM) is a component which permits dynamic phase and/or amplitude shaping of the cross section of a light beam. Thanks to a high efficiency, its wide range of applications includes e.g. optical beam steering and applications in signal processing. This Master thesis presents a method for designing pixelated diffractive optical elements (DOEs) producing spots whose intensities are optimized to heavily depend on a particular phase modulation level. A theoretical expression for the sensitivity is derived and both simulations as well as experiments show that the achieved sensitivities are several times higher than when using conventional, intensity-maximizing, DOE design methods. Eventually, a non-interferometric way of determining the phase modulation characteristics of an 8-bit SLM unit using these DOEs is suggested. The results in one case show an agreement within 20◦ with measurements made by interferometry. As the method is subjected to a different setting of the SLM unit yielding a higher residual amplitude modulation, interferometry and phase retrieval using DOEs agree to a lesser extent. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12380/18547 | |
| dc.language.iso | eng | |
| dc.setspec.uppsok | PhysicsChemistryMaths | |
| dc.subject | Optik | |
| dc.subject | Fotonik | |
| dc.subject | Optics | |
| dc.subject | Photonics | |
| dc.title | Design and evaluation of phase-deviation sensitive DOEs with possible application in SLM characterization | |
| dc.type.degree | Examensarbete för masterexamen | sv |
| dc.type.degree | Master Thesis | en |
| dc.type.uppsok | H |