Wu, Yangbo, Qu, Zhibo, Osman, Ahmed, Wei, Chen, Cao, Wei, Tarazona, Antulio, Oo, Swe Zin, Chong, Harold, Muskens, Otto, Mashanovich, Goran and Nedeljković, Milos (2021) Nanometallic antenna assisted amorphous silicon waveguide integrated bolometer for mid-infrared. Optics Letters, 46 (3), 677-680, [412529]. (doi:10.1364/OL.412529).
Abstract
Bolometers are thermal detectors widely applied in the mid-infrared (MIR) wavelength range. MIR silicon photonics is a promising platform for emerging applications, e.g. in optical sensing, for its low cost and high volume manufacturing potential. In an integrated sensing system on chip, a broadband scalable bolometer absorbing the light over the whole MIR wavelength range could play an important role. In this work we have developed a waveguide-based bolometer operating in the wavelength range of 3.72 - 3.88μm on the amorphous silicon (a-Si) platform. Significant improvements in the bolometer design result in a 20x improved responsivity compared to earlier work on SOI. The bolometer offers 24.62 % change in resistance per milliwatt of inputpower at 3.8μm wavelength. The thermal conductance of the bolometer is 3.86×10-5W/K and an improvement as large as 3 orders magnitude may be possible in the future through redesign of the device geometry.
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- Current Faculties > Faculty of Engineering and Physical Sciences > School of Physics and Astronomy > Quantum, Light and Matter Group
School of Physics and Astronomy > Quantum, Light and Matter Group - Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics
Zepler Institute for Photonics and Nanoelectronics - Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics > Nanophotonics Group > Photonic Systems Circuits and Sensors Group
Zepler Institute for Photonics and Nanoelectronics > Nanophotonics Group > Photonic Systems Circuits and Sensors Group - Faculties (pre 2018 reorg) > Faculty of Physical Sciences and Engineering (pre 2018 reorg) > Electronics & Computer Science (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg)
School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg) - Current Faculties > Faculty of Engineering and Physical Sciences > School of Electronics and Computer Science > Sustainable Electronic Technologies
School of Electronics and Computer Science > Sustainable Electronic Technologies
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