Optical MEMS for sensing, and Infrared/Terahertz Light Manipulation
Event details
| Date | 06.09.2019 |
| Hour | 16:00 › 17:00 |
| Speaker | Dr. Gino Putrino |
| Location | |
| Category | Conferences - Seminars |
Abstract: The Advanced Sensing and Quantum Technologies group is Australia's leading infrared materials and devices research group. Dr. Putrino will provide an overview of this group's activities, then discuss three of the thin film based technologies currently being developed. Surface micromachined devices provide a unique technique for creating various sensors with application for many industries including biomedical, agricultural, and mining. Microelectromechanical systems (MEMS) built using large-scale foundry techniques are robust and low-cost. We look at three technologies based on optical MEMS sensors:
2) Tunable infrared microspectrometers based on thin film cavities are demonstrated over a full octave optical range. These thin film membranes can range from sizes of hundreds of microns squared to a few millimetres squared, providing a pathway towards compact, robust infrared multispectral and hyperspectral imaging.
3) 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 the thickness of the wavelengths they manipulate. Tuning control is performed using electrostatic forces for device actuation.
Bio: Gino Putrino is a researcher for the Advanced Sensing and Quantum Technologies group at the University of Western Australia. He is also the Chair for the IEEE Western 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 engineering from the University of Western Australia (UWA), Perth, in 1999. He received the Ph.D. degree in the School of Electrical, Electronic and Computer Engineering at UWA in 2014. His research interests involve combining optics, silicon photonics, metamaterials and MEMS to create novel structures for sensing applications.
- microcantilevers used as sensing transducers,
- infrared microspectrometers based on a tunable Fabry-Perot cavity, and
- Tunable Terahertz absorbers based on meta-atom interaction.
2) Tunable infrared microspectrometers based on thin film cavities are demonstrated over a full octave optical range. These thin film membranes can range from sizes of hundreds of microns squared to a few millimetres squared, providing a pathway towards compact, robust infrared multispectral and hyperspectral imaging.
3) 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 the thickness of the wavelengths they manipulate. Tuning control is performed using electrostatic forces for device actuation.
Bio: Gino Putrino is a researcher for the Advanced Sensing and Quantum Technologies group at the University of Western Australia. He is also the Chair for the IEEE Western 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 engineering from the University of Western Australia (UWA), Perth, in 1999. He received the Ph.D. degree in the School of Electrical, Electronic and Computer Engineering at UWA in 2014. His research interests involve combining optics, silicon photonics, metamaterials and MEMS to create novel structures for sensing applications.
Practical information
- Informed public
- Free