Soler Penadés, J., Sánchez-Postigo, A., Nedeljković, M., Ortega-Moñux, A., Wangüemert-Pérez, J. G., Xu, Y., Halir, R., Qu, Z., Khokhar, A. Z., Osman, A., Cao, W., Littlejohns, C. G., Cheben, P., Molina-Fernández, I. and Mashanovich, G.Z. (2018) Suspended silicon waveguides for long-wave infrared wavelengths. Optics Letters, 43 (4), 795-798. (doi:10.1364/OL.43.000795).
Abstract
In this Letter, we report suspended silicon waveguides operating at a wavelength of 7.67 μm with a propagation loss of 3.1± 0.3 dB∕cm. To our knowledge, this is the first demonstration of low-loss silicon waveguides at such a long wavelength, with loss comparable to other platforms that use more exotic materials. The suspended Si waveguide core is supported by a sub-wavelength grating that provides lateral optical confinement while also allowing access to the buried oxide layer so that it can be wet etched using hydrofluoric acid. We also demonstrate low-loss waveguide bends and s-bends.
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- Faculties (pre 2018 reorg) > Faculty of Physical Sciences and Engineering (pre 2018 reorg) > Electronics & Computer Science (pre 2018 reorg) > Photonic Systems Circuits & Sensors (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg) > Photonic Systems Circuits & Sensors (pre 2018 reorg)
School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg) > Photonic Systems Circuits & Sensors (pre 2018 reorg) - Faculties (pre 2018 reorg) > Faculty of Physical Sciences and Engineering (pre 2018 reorg) > Optoelectronics Research Centre (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2018 reorg)
Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2018 reorg)
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