Optical Fabrication and Testing
Events
Optical Fabrication and Testing (OF&T)
Optica Design and Fabrication Congress
16 – 19 June 2025
Denver, Colorado, USA
OF&T will offer new ideas and concepts for the shaping, smoothing, testing and manufacture of conventional and novel optics/optical systems finding applications in existing and emerging technologies.
Optical Fabrication and Testing
Topic Categories
Optical Fabrication and Testing (OF&T)
- Optical Materials
- New materials for new applications (metamaterials, composites, plastics, crystals, glasses, lightweight materials, ceramics, carbides, chalcogenides, UV optical materials, additive manufacturing)
- Material properties and the response to fabrication processes
- Gradient optics
- Advancements in traditional materials
- Grinding and Polishing
- Grinding, precision grinding, diamond turning and milling, ultrasound assisted machining, vibration assisted polishing, processing of edges
- New ideas in traditional (pitch) polishing, magnetic field-assisted finishing, ion beam figuring and polishing, fluid-jet polishing, novel finishing processes
- Abrasives, novel abrasive formulations, abrasive-impregnated pads
- Advanced Micro-Optics Fabrication
- Laser micromachining and laser polishing
- 3D printing, additive manufacturing
- High precision diamond turning
- Novel lithography techniques
- Deterministic figuring techniques, mid-to-high spatial frequency error control and various smoothing approaches during computer controlled optical surfacing
- Optical Testing and Advanced Metrology Systems
- Testing for sub-surface damage, homogeneity, form, finish and scratch/dig
- Measurement, interpretation and applications of power spectral density
- New ideas in interferometry, direct slope/curvature measurement
- Testing aspheric surfaces with and without null-optics, reconfigurable nulls
- Computer-generated holograms and spatial light modulators for testing
- Absolute tests for flats, spheres and aspheres
- New concepts in profilometry: optical and mechanical probes
- Testing of very small optics
- White light interferometry, fringe projection metrology, deflectometry
- Testing in adverse environments: vibration, turbulence, vacuum and space
- In-process metrology
- Testing of freeform surfaces
- Immersive and low contrast testing methods
- Metalens, Metasurfce and flat optics metrology
- Assembly, Alignment, Contamination Control, Cleaning, Packaging
- Adhesives and cements for elevated, ambient and low temperature
- Stable joining of optical surfaces by optical contacting, direct bonding or laser welding
- Alignment of optical components and systems containing aspheric elements
- Alignment of multi-element mirrors
- Measurement and control of deformation and stress birefringence in mounting
- Cleaning optics, clean rooms and contamination control
- Handling and packaging of precision optics
- Automated alignment methods and techniques
- Mount induced stress resistant optical designs
- Process Engineering
- Glass and plastic (micro) molding to high surface accuracy and low surface roughness
- Cost effective optics manufacturing processes
- Engineering gradient index optics
- Cost effective fabrication of aspheric surfaces
- Automation of the manufacturing chain in optics fabrication
- Good and bad experiences from the shop floor
- Cleanliness in processing, coating, handling and shipping
- Advanced post processing techniques for diamond turned surfaces
- Fabricating Next Generation Optical Systems
- Photolithography optics
- Adaptive optics
- Integrated optics
- Freeform optical systems and industrial manufacturing
- Replicated optical surfaces
- Advanced coating technologies
- Large Optics
- Fabrication and testing of large optics for EUV and X-Ray applications
- Large optics for earth-based and space-based applications
- Adaptive optical systems
- Gravity sag compensation systems
- Nanostructures and Films
- Characterization of coatings for advanced laser optics
- Nanostructures on optical surfaces
- Optics for High Fluence or High CW Density Applications
- Materials and surface treatments for high Laser Induced Damage Threshold
- Lifetime testing and environmental impact
- Modelling and experiments on damage mechanisms
- Integrated liquid or convection cooled optics
- Passive/active thermal compensating optical systems
- Education and Training in Optics Metrology and Finishing Science
- Uncertainty and traceability
- Interpretation of metrics for optical surface characterization
- AI-aided Manufacturing and Metrology
- Machine Learning
- Predictive Manufacturing
- AI-aided Testing
Chairs
Daewook Kim
Wyant Coll of Opt Sciences, UArizona, United States,
General Chair
Natalia Trela-McDonald
PowerPhotonic Ltd, United Kingdom,
General Chair
Jens Bliedtner
Ernst-Abbe-Hochschule Jena, Germany,
Program Chair
Ping Zhou
ASML,
Program Chair
Committee Members
- Daewook Kim, Wyant Coll of Opt Sciences, UArizona, United States, General Chair
- Natalia Trela-McDonald, PowerPhotonic Ltd, United Kingdom, General Chair
- Jens Bliedtner, Ernst-Abbe-Hochschule Jena, Germany, Program Chair
- Ping Zhou, ASML, Program Chair
- Andreas Beutler, Mahr GmbH, Germany
- Paul Dewa, Corning Tropel Corporation, United States
- Margaret Dominguez, NASA Goddard Space Flight Center, United States
- Wei Gao, Tohoku University, Japan
- Mourad Idir, Brookhaven National Laboratory, United States
- Gufran Khan, Indian Institute of Technology Delhi, India
- Jun Ho Lee, Kongju National University, Republic Of Korea
- James Mooney, L3 Harris Technologies, United States
- Soojong Pak, Kyung Hee University, Republic Of Korea
- Sven Schröder, Fraunhofer IOF, Germany
- Tayyab Suratwala, Lawrence Livermore National Laboratory, United States
- Hideo Takino, Chiba Institute of Technology, Japan
- David Vega, Ansys Zemax, United States
Invited Speakers
Optical Fabrication and Testing (OF&T)
- Robert Brunner, Ernst-Abbe-Hochschule, Jena, Germany
Microstructured Optics: Expanding to Meso- and Nanoscale & Exploring New Pathways in Process Chains - M J Daniel Esser, Heriot-Watt University, United Kingdom
Full-field Stress-induced Birefringence Analysis of Advanced Optics and Bonding Methods - Oliver Faehnle, PanDao GmbH, Switzerland
The Smart Optics Factory - Young-Sik Ghim, Korea Research Inst of Standards & Sci, Republic Of Korea
Single-shot Phase Measuring Deflectometry for Specular Free-form Surface Measurements - Logan Graves, University of Arizona, United States
CGH Metrology: The New Standard in Surface Testing - Luc Joannes, Lambda-X Ophthalmics, Belgium
Ophthalmic Lenses Quality Control Through Wavefront Sensors - Ki-Nam Joo, Chosun University, Republic Of Korea
Wafer Warpage Measurements by a Lateral Shearing Interferometer Based on a Polarization Grating - Yves Jourlin, Lab Hubert Curien UMR CNRS 5516, France
Fabrication of Periodic Micro-nanostructured Optical Components Combining Innovative Lithography Processes and Functionalized Sol-gel Based Thin Layer - Neha Khatri, CSIR-CSIO, India
Diamond Turning for Precision Optical Elements: Innovations, Trends, and Key Challenges - Rebecca Mitchell, National Renewable Energy Laboratory, United States
Title to be Announced - Wilfried Noell, Focuslight Technologies Inc.,
Title to be Announced - Yuki Shimizu, Hokkaido University, Japan
Multi-degree-of-freedom Optical Sensors for Precision Positioning - Ye Wang, Australian National University, Australia
Title to be Announced - Xiangchao Zhang, Fudan University, China
Deterministic Deflectometric Measurement: from Rays to Beams
Plenary Speakers
Junsuk Rho
Pohang University of Science and Technology, Korea
Metasurfaces for Imaging, Sensing and Display
Jessica van Heck
Phabulous Pilot Line Association, Switzerland
