TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and applications
TOM 7 - Thermal radiation and energy management
TOM 8 - Non-linear and Quantum Optics
TOM 9 - Opto-electronic Nanotechnologies and Complex Systems
TOM 10 - Frontiers in Optical Metrology
TOM 11 - Tapered optical fibers, from fundamental to applications
TOM 12 - Optofluidics
TOM 13 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session
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Please note that all times are shown in the time zone of the conference. The current conference time is: 30th Sept 2022, 08:45:57pm WEST
TOM3 S04: Optical System Design, Tolerancing and Manufacturing
9:00am - 10:30am
Session Chair: Marco Hanft, Carl Zeiss AG, Germany
Ground floor, 99 seats
9:00am - 9:30am Invited ID: 335 / TOM3 S04: 1 TOM 3 Optical System Design, Tolerancing and Manufacturing
Zoom lens first-order search tools: Monte Carlo vs particle swarm optimization
Julie Bentley, Jacob Sacks
University of Rochester
It is often easier (and faster) for a lens designer to adapt an existing design or known design form to a new problem. Very rarely do you need to go back to first-order thin lenses and/or invent a new form. However, the design of a new zoom lens is complex and typically requires a designer to “start from scratch”. Monte-Carlo (MC) searches have proven to be an effective way to characterize the first order solution space of zoom lenses, but MC simulations can take many hours/days to be completed, slowing down the design process. Particle swarm optimization (PSO) is an alternative optimization algorithm that mimics the hunting or foraging behaviors of a group of organisms. This paper compares the sets of solutions generated by MC and PSO methods, showing that PSO is capable of generating a diverse set of solutions that typically outperform the solutions generated by MC in a fraction of the time.
9:30am - 9:45am ID: 185 / TOM3 S04: 2 TOM 3 Optical System Design, Tolerancing and Manufacturing
Ray transfer matrix for onion-type GRIN lenses
Veronica Lockett1, Rafael Navarro1, Jose Luis López2
1INMA, Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza, Zaragoza, Spain; 2Universidad Pública de Navarra, Pamplona, Spain
We present the computation of an ABCD matrix for onion-type GRIN lenses. By applying a differential approximation of the layer thickness, the matrix product of a high number of matrices is synthetized into a single matrix where the elements are integrals. The difference between this ABCD matrix and a homogeneous lens matrix is one integration term in element C, which is the GRIN contribution to the lens power. In the case of the crystalline lens, the analytical approximation to the GRIN lens power provides an accurate and concise solution in terms of Gaussian hypergeometric functions.
9:45am - 10:00am ID: 208 / TOM3 S04: 3 TOM 3 Optical System Design, Tolerancing and Manufacturing
Enabling photonic system integration by applying glass based microelectronic packaging approaches
Henning Schröder1, Wojciech Lewoczko-Adamczyk1, Daniel Weber2
1Fraunhofer IZM, Germany; 2Technische Universität Berlin
Advanced hybrid packaging technologies are used to enhance functionality of glass-based substrates featuring electrical, thermal and optical components including laser diodes, modulators, isolators, photonic integrated circuits, beam-splitters and micro lenses. Such glass-based substrates can be either thin glass layers on large panels containing optical waveguides or more mini-bench-like boards. Optical fiber interconnects, plugs, and electrical-optical integration platforms are used for higher level system integration. We discuss thin glass as a suitable base material for ion exchanged waveguide panels and interposers, precise glass structuring for posts and holders, electrical wiring and the related high precision assembly techniques.
10:00am - 10:15am ID: 212 / TOM3 S04: 4 TOM 3 Optical System Design, Tolerancing and Manufacturing
Control of thermal emission for thermophotovoltaic systems
Daniela De Luca1,2, Antonio Caldarelli2,3, Eliana Gaudino2,3, Umar Farooq1,2, Marilena Musto2,3, Emiliano Di Gennaro1,2, Roberto Russo2
1Department of Physics, Università degli Studi di Napoli “Federico II”, 80125 Napoli, Italy; 2Deparment of Industrial Engineering, Università degli Studi di Napoli “Federico II”, 80125 Napoli, Italy; 3Consiglio Nazionale delle Ricerche, Istituto di Scienze Applicate e Sistemi Intelligenti, 80131 Napoli, Italy
Thermal emitters play a key role in controlling the thermal radiation emitted in thermophotovoltaic systems and in increasing their energy conversion efficiency. Here, we present different designs of emitters with spectrally selective properties, based on easy-to-fabricate multilayer structures and characterized by a sharp transition from high to low emissivity in the region of interest. Those structures make use of refractory materials to allow working at high operating temperatures and they can be easily customized to maximize the thermal emission in the region of the desired wavelengths.
10:15am - 10:30am ID: 282 / TOM3 S04: 5 TOM 3 Optical System Design, Tolerancing and Manufacturing
Removing microdefects on glass surfaces using laser radiation
Kerstin Götze1, Jens Bliedtner1, Jürgen Bischoff1, Oliver Faehnle2, Michael Kahl2
1University of Applied Sciences Jena, Germany; 2OST – Eastern Switzerland University of Applied Sciences
Scratches and microdefects on glass surfaces significantly impair the optical and mechanical properties of optical components. They already occur during mechanical processing (shaping) and have to be removed in several specific processing steps. A process is presented with which scratches and microdefects can be removed by means of CO2 laser radiation.