Optical Interference Coatings Conference

 

 

       

Brian Sullivan

Iridian Spectral Technologies Ltd., Canada


KEYNOTE: New Trends and Developments in Precision Filters and Their Applications
This talk will explore the applications of precision optical filters in the fields of telecommunications (free space and fiber), life sciences, space (earth observation and satellite inter-links), lidar, quantum computing/communications and astronomy and discuss new trends and developments of optical filters in these fields. As well, some aspects of optical filters (such as phase control and group delay) that are critical to ensuring that the filter operates as expected in its intended application will be briefly discussed. Theoretical and measured results of different optical filters will also be shown.
This talk will explore the applications of precision optical filters in the fields of telecommunications (free space and fiber), life sciences, space (earth observation and satellite inter-links...

About the Speaker
Brian Sullivan graduated with a Ph.D. in Optical Physics from the University of British Columbia in 1987. Brian then joined the Thin Films Group at National Research Council of Canada first as a post-doc and then as a Research Scientist. The Thin Films Group, lead by George Dobrowolski, was involved in practical applications of optical coatings which resulted in interactions with many private companies and lead to the development of methods to automate the deposition of optical filters. Based on technology developed at the NRCC, Brian founded Iridian Spectral Technologies Ltd. in 1988 along with Peter Dawson. Iridian first fabricated optical filters for telecommunication applications and then for other fields including spectroscopic filters (life sciences and instrumentation), 3D cinema, space and astronomy, covering the spectral range from the UV (325 nm) to the LWIR (16 um). Brian is CTO of Iridian and remains actively involved in the development of optical filters for new applications.
Brian Sullivan graduated with a Ph.D. in Optical Physics from the University of British Columbia in 1987. Brian then joined the Thin Films Group at National Research Council of Canada first as a...

Michel Lequime

Institut Fresnel, France


KEYNOTE: Fourier transform formalism for the description of electromagnetic phenomena in modern multilayers applications
Optical thin films, as 2D spatially invariant structures, are ideally suited to implement decomposition of the electromagnetic field on a plane-wave basis. We show how such a basis choice results spontaneously from solving of Maxwell’s equations using two consecutive Fourier transforms, the first in the time domain and the second in the spatial invariance plane of the layers.This approach logically leads to the introduction of the central concept of complex admittance, and we show how this allows to describe within a unified approach various complex phenomena, such as giant field enhancement in dielectric stacks, light scattering from thin-film optical filters, and optical properties of planar multilayer microcavities.
Optical thin films, as 2D spatially invariant structures, are ideally suited to implement decomposition of the electromagnetic field on a plane-wave basis. We show how such a basis choice results...

About the Speaker
Michel Lequime received his Master's in Engineering from the Institut d'Optique Graduate School in 1974 and his PhD degree from Paris-Sud University in 1977. His doctoral research was devoted to the study of third-order non-linear optical processes at the picosecond scale. In 1979, he joined BERTIN, a French Contract Research Organization, to participate in the creation of an optical group at the company. Its activities dealt mainly with Space Optics (Multicolour Camera for the observation of Halley's Comet - ESA Giotto probe, Optical Beacon for the ESA Semi-Conductor Inter Satellite Link Experiment - SILEX) and Optical Fiber Sensors (inline color measurement of refined fuels, pressure and temperature measurements for down-hole applications). In 2000, he joined the Ecole Centrale Marseille as Professor of Optics and Project Management and the Institut Fresnel as Senior Scientist. From 2002 to 2014, he was in charge of the Optical Thin Films Group at the Institut Fresnel. He is currently Emeritus Professor at Centrale Marseille and continues to pursue his research activities at the Institut Fresnel on the development of instrumentation for the comprehensive characterization of the optical properties of multilayers components. Michel Lequime has served as Secretary to the French Optical Society from 2009 to 2012 and is the author of more than 300 publications and communications in the field of Optics.
Michel Lequime received his Master's in Engineering from the Institut d'Optique Graduate School in 1974 and his PhD degree from Paris-Sud University in 1977. His doctoral research was devoted to...

Aaswath Raman

University of California, Los Angeles, USA


EVENING SPEAKER: Molding the flow of heat around us: Infrared optical coatings for radiative cooling and beyond
Controlling the infrared heat that surrounds us may be an essential part of how we mitigate and adapt to climate change. In this talk, I will introduce how photonic and thin-film approaches have enabled new capabilities in radiative cooling, a nascent approach to passive cooling for our built environment. I will also discuss new fundamental capabilities now emerging in the spectral and directional control of thermal emission over infrared wavelengths.
Controlling the infrared heat that surrounds us may be an essential part of how we mitigate and adapt to climate change. In this talk, I will introduce how photonic and thin-film approaches have...

About the Speaker
Aaswath P. Raman is an Assistant Professor of Materials Science and Engineering at the University of California, Los Angeles (UCLA). He is also Co-Founder and Chief Scientific Officer of SkyCool Systems, a startup commercializing radiative cooling technologies he previously pioneered. He received his Ph.D. in Applied Physics from Stanford University, and A.B. in Physics and M.S. in Computer Science from Harvard University. His research group pursues fundamental and applied research in nanophotonics, metamaterials, thermal sciences, energy technologies and computational methods. His awards and recognition include the MIT Technology Review Innovator Under 35 (TR35) (2015), the Materials Research Society Robinson Award for Renewable Energy (2018), the Sloan Research Fellowship in Physics (2019), the Hellman Fellows Award (2020) and the DARPA Young Faculty Award (2021). His work has been featured in The New York Times, The Washington Post, The Economist, Popular Science, National Geographic and other major outlets, and his TED talk, given at TED 2018, has been viewed over 2 million times online.
Aaswath P. Raman is an Assistant Professor of Materials Science and Engineering at the University of California, Los Angeles (UCLA). He is also Co-Founder and Chief Scientific Officer of SkyCool...