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SUMMARY:Optical MEMS for sensing\, and Infrared/Terahertz Light Manipulati
 on
DTSTART:20190906T160000
DTEND:20190906T170000
DTSTAMP:20260916T074055Z
UID:5de7278f266c758f20ef6e84688cc69ccaffdcef54d4a54c6f92735f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Gino Putrino\nAbstract: The Advanced Sensing and Quantum T
 echnologies group is Australia's leading infrared materials and devices re
 search group. Dr. Putrino will provide an overview of this group's activit
 ies\, then discuss three of the thin film based technologies currently bei
 ng developed. Surface micromachined devices provide a unique technique for
  creating various sensors with application for many industries including b
 iomedical\, agricultural\, and mining. Microelectromechanical systems (MEM
 S) built using large-scale foundry techniques are robust and low-cost. We 
 look at three technologies based on optical MEMS sensors:\n\n	microcantile
 vers used as sensing transducers\,\n	infrared microspectrometers based on 
 a tunable Fabry-Perot cavity\, and\n	Tunable Terahertz absorbers based on 
 meta-atom interaction.\n\n1) Microcantilevers are combined with a silicon 
 photonics readout technique to provide a scalable system capable of measur
 ing picometer-scale movements of multiple cantilevers in an array. Radiati
 on pressure can be used to actuate the cantilevers to create an all-optica
 l dynamic sensing system. The results of a demonstration of an atomic forc
 e microscope (AFM) using this technology will be presented.\n2) Tunable in
 frared microspectrometers based on thin film cavities are demonstrated ove
 r a full octave optical range. These thin film membranes can range from si
 zes of hundreds of microns squared to a few millimetres squared\, providin
 g a pathway towards compact\, robust infrared multispectral and hyperspect
 ral imaging.\n3) Using photolithograpy and metal deposition techniques\, a
  combination of MEMS and meta-atom structures are used to create a tunable
  terahertz absorber. These sub-wavelength devices are less than ~1/50 of t
 he thickness of the wavelengths they manipulate. Tuning control is perform
 ed using electrostatic forces for device actuation.\n\nBio: Gino Putrino i
 s a researcher for the Advanced Sensing and Quantum Technologies group at 
 the University of Western Australia. He is also the Chair for the IEEE Wes
 tern Australia Joint Chapter of the Electron Devices Society\, Solid State
  Circuits Society\, and Photonics Society. He received the B.Sc. degree in
  computer science and the B.E. degree in electrical and electronic enginee
 ring from the University of Western Australia (UWA)\, Perth\, in 1999. He 
 received the Ph.D. degree in the School of Electrical\, Electronic and Com
 puter Engineering at UWA in 2014. His research interests involve combining
  optics\, silicon photonics\, metamaterials and MEMS to create novel struc
 tures for sensing applications.
LOCATION:BM 1130 https://plan.epfl.ch/?room==BM%201130
STATUS:CONFIRMED
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