RT Journal Article
T1 Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding.
A1 Penades, J Soler
A1 Ortega-Moñux, A
A1 Nedeljkovic, M
A1 Wangüemert-Pérez, J G
A1 Halir, R
A1 Khokhar, A Z
A1 Alonso-Ramos, C
A1 Qu, Z
A1 Molina-Fernández, I
A1 Cheben, P
A1 Mashanovich, G Z
AB We present several fundamental photonic building blocks based on suspended silicon waveguides supported by a lateral cladding comprising subwavelength grating metamaterial. We discuss the design, fabrication, and characterization of waveguide bends, multimode interference devices and Mach-Zehnder interferometers for the 3715 - 3800 nm wavelength range, demonstrated for the first time in this platform. The waveguide propagation loss of 0.82 dB/cm is reported, some of the lowest loss yet achieved in silicon waveguides for this wavelength range. These results establish a direct path to ultimately extending the operational wavelength range of silicon wire waveguides to the entire transparency window of silicon.
YR 2016
FD 2016
LK https://hdl.handle.net/10668/25286
UL https://hdl.handle.net/10668/25286
LA en
DS RISalud
RD Apr 18, 2025