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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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Khokhar, Ali
in Cooperation with on an Cooperation-Score of 37%
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Publications (6/6 displayed)
- 2018Real-time monitoring and gradient feedback enable accurate trimming of ion-implanted silicon photonic devicescitations
- 2017Transversal symmetry breaking in novel photonic crystal waveguide
- 2017Laser annealing of low temperature deposited silicon waveguidescitations
- 2017Phase trimming of Mach-Zehnder Interferometers by laser annealing of germanium implanted waveguidescitations
- 2017Post-fabrication phase trimming of Mach-Zehnder Interferometers by laser annealing of germanium implanted waveguidescitations
- 2016Data for Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding
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document
Transversal symmetry breaking in novel photonic crystal waveguide
Abstract
We present a novel Photonic Crystal Slab (PhC) fabricated in Silicon (Si) with pattern edge along <11-2> direction. Such a design enabled a dry and wet etching processes combination to atomically flatten the sidewall surface defined by Si[111]. Moreover, a new method to tailor the relation dispersion of line defect PhC waveguide (W1) using this structure is introduced. By mismatching the upper and lower part of the waveguide in the propagation direction, FDTD simulations demonstrate a net shift of the Cut-Off wavelength from 1605nm to 1742nm for a mismatch of zero and half of the lattice constant of the crystal a, respectively. We discuss both use of this new PhC for repeatable photonic device on-chip integration and the benefit of this new waveguide design method to engineer large bandwidth mode.