Digital Lensing via Programmable Diffractive Optics
Event details
| Date | 26.08.2021 |
| Hour | 10:00 › 12:00 |
| Speaker | Eric Bezzam |
| Category | Conferences - Seminars |
EDIC candidacy exam
exam president: Prof. Mark Pauly
thesis advisor: Prof. Martin Vetterli
co-examiner: Prof. Christophe Moser
Abstract
Lenses are a core component of any optical design. However, given a particular lens, its potential uses are limited to applications which require that specific construction and focus length. Optoelectronic devices such as spatial light modulators (SLM) can add a dimension of programmability to the optical chain, but their current understanding (and price point) limit their adoption. Our research goal is to develop a coherent set of theoretical and practical tools for digital lensing with SLMs in order broaden their audience and use. In this proposal, we discuss three works that span the breadth of topics in this endeavor: modeling the propagation of light, holography, and lensless cameras. Finally, we discuss how these seemingly disparate topics can contribute to the broader task of programmable optics.
Background papers
exam president: Prof. Mark Pauly
thesis advisor: Prof. Martin Vetterli
co-examiner: Prof. Christophe Moser
Abstract
Lenses are a core component of any optical design. However, given a particular lens, its potential uses are limited to applications which require that specific construction and focus length. Optoelectronic devices such as spatial light modulators (SLM) can add a dimension of programmability to the optical chain, but their current understanding (and price point) limit their adoption. Our research goal is to develop a coherent set of theoretical and practical tools for digital lensing with SLMs in order broaden their audience and use. In this proposal, we discuss three works that span the breadth of topics in this endeavor: modeling the propagation of light, holography, and lensless cameras. Finally, we discuss how these seemingly disparate topics can contribute to the broader task of programmable optics.
Background papers
- "Band-Limited Angular Spectrum Method for Numerical Simulation of Free-Space Propagation in Far and Near Fields" by K. Matsushima and T. Shimobaba: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-17-22-19662&id=186848
- "Neural Holography with Camera-in-the-loop Training" by Y. Peng, S. Choi, N. Padmanaban, and G. Wetzstein: http://www.computationalimaging.org/wp-content/uploads/2020/08/NeuralHolography_SIGAsia2020.pdf
- "PhlatCam: Designed Phase-Mark Based Thin Lensless Camera" by V. Boominathan, J.K. Adams, J.T. Robinson, and A. Veeraraghavan: https://ieeexplore.ieee.org/document/9076617
Practical information
- General public
- Free
Contact
- edic@epfl.ch