Marco Passoni
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View article: Post-selection free time-bin entanglement on a thin-film lithium niobate photonic chip
Post-selection free time-bin entanglement on a thin-film lithium niobate photonic chip Open
Time-bin entanglement is the most commonly used form of entanglement for quantum communication protocols over fiber networks, due to the natural resilience of this encoding scheme to thermal phase fluctuations in optical fibers. Projective…
View article: Efficient ultra-broadband low-resolution astrophotonic spectrographs
Efficient ultra-broadband low-resolution astrophotonic spectrographs Open
Broadband low-resolution near-infrared spectrographs in a compact form are crucial for ground- and space-based astronomy and other fields of sensing. Astronomical spectroscopy poses stringent requirements including high efficiency, broad b…
View article: Efficient ultra-broadband low-resolution astrophotonic spectrographs
Efficient ultra-broadband low-resolution astrophotonic spectrographs Open
Broadband low-resolution near-infrared spectrographs in a compact form are crucial for ground- and space-based astronomy and other fields of sensing. Astronomical spectroscopy poses stringent requirements including high efficiency, broad b…
View article: Angular dependence and absorption properties of the anapole mode of Si nano-disks
Angular dependence and absorption properties of the anapole mode of Si nano-disks Open
The polarization- and angle-resolved optical responses of the anapole mode in silicon nano-disks array have been experimentally and theoretically investigated. The good agreement between measured data and simulations yields to a consistent…
View article: A facile light‐trapping approach for ultrathin GaAs solar cells using wet chemical etching
A facile light‐trapping approach for ultrathin GaAs solar cells using wet chemical etching Open
Thinning down the absorber layer of GaAs solar cells can reduce their cost and improve their radiation hardness, which is important for space applications. However, the lighttrapping schemes necessary to achieve high absorptance in these c…
View article: Slow light with interleaved p-n junction to enhance performance of integrated Mach-Zehnder silicon modulators
Slow light with interleaved p-n junction to enhance performance of integrated Mach-Zehnder silicon modulators Open
Slow light is a very important concept in nanophotonics, especially in the context of photonic crystals. In this work, we apply our previous design of band-edge slow light in silicon waveguide gratings [M. Passoni et al, Opt. Express 26, 8…
View article: Co-optimizing grating couplers for hybrid integration of InP and SOI photonic platforms
Co-optimizing grating couplers for hybrid integration of InP and SOI photonic platforms Open
Grating couplers are widely used optical interfaces in integrated photonics, especially on the Silicon-On-Insulator (SOI) platform. Their design has been optimized for coupling light between a Photonic Integrated Circuit (PIC) and a single…
View article: Optimizing band-edge slow light in silicon-on-insulator waveguide gratings
Optimizing band-edge slow light in silicon-on-insulator waveguide gratings Open
A systematic analysis of photonic bands and group index in silicon grating waveguides is performed, in order to optimize band-edge slow-light behavior in integrated structures with low losses. A combination of numerical methods and perturb…
View article: Grating couplers in silicon-on-insulator: The role of photonic guided resonances on lineshape and bandwidth
Grating couplers in silicon-on-insulator: The role of photonic guided resonances on lineshape and bandwidth Open
Most grating couplers for silicon photonics are designed to match the approximately 10 μm mode-field diameter (MFD) of single-mode telecom fibres. In this letter, we analyse grating-coupler designs in the Silicon-on-Insulator (SOI) platfor…