Metasurface‐Enhanced Infrared Spectroscopy: An Abundance of Materials and Functionalities
Infrared spectroscopy provides unique information on the composition and dynamics of
biochemical systems by resolving the characteristic absorption fingerprints of their …
biochemical systems by resolving the characteristic absorption fingerprints of their …
Germanium-based integrated photonics from near-to mid-infrared applications
Germanium (Ge) has played a key role in silicon photonics as an enabling material for
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …
Midinfrared spectroscopic analysis of aqueous mixtures using artificial-intelligence-enhanced metamaterial waveguide sensing platform
As miniaturized solutions, mid-infrared (MIR) waveguide sensors are promising for label-free
compositional detection of mixtures leveraging plentiful absorption fingerprints. However …
compositional detection of mixtures leveraging plentiful absorption fingerprints. However …
Larger-than-unity external optical field confinement enabled by metamaterial-assisted comb waveguide for ultrasensitive long-wave infrared gas spectroscopy
Nanophotonic waveguides that implement long optical pathlengths on chips are promising
to enable chip-scale gas sensors. Nevertheless, current absorption-based waveguide …
to enable chip-scale gas sensors. Nevertheless, current absorption-based waveguide …
[HTML][HTML] Mid-infrared supercontinuum generation in a low-loss germanium-on-silicon waveguide
We experimentally demonstrate supercontinuum (SC) generation in a germanium-on-silicon
waveguide. This waveguide exhibits propagation loss between 1.2 dB/cm and 1.35 dB/cm in …
waveguide. This waveguide exhibits propagation loss between 1.2 dB/cm and 1.35 dB/cm in …
On-chip optical gas sensors based on group-IV materials
Compact and smart optical gas sensors have attracted significant attention over the past few
decades. Among the materials used for developing such gas sensors, group-IV materials …
decades. Among the materials used for developing such gas sensors, group-IV materials …
Heterogeneously integrated graphene/silicon/halide waveguide photodetectors toward chip-scale zero-bias long-wave infrared spectroscopic sensing
Mid-infrared absorption spectroscopy plays an important role in molecule identification and
quantification for widespread applications. Integrated photonics provides opportunities to …
quantification for widespread applications. Integrated photonics provides opportunities to …
High-quality microresonators in the longwave infrared based on native germanium
The longwave infrared (LWIR) region of the spectrum spans 8 to 14 μm and enables high-
performance sensing and imaging for detection, ranging, and monitoring. Chip-scale LWIR …
performance sensing and imaging for detection, ranging, and monitoring. Chip-scale LWIR …
Graded SiGe waveguides with broadband low-loss propagation in the mid infrared
Mid-infrared (mid-IR) silicon photonics is expected to lead key advances in different areas
including spectroscopy, remote sensing, nonlinear optics or free-space communications …
including spectroscopy, remote sensing, nonlinear optics or free-space communications …
Mid-infrared supercontinuum generation in silicon-germanium all-normal dispersion waveguides
We demonstrate coherent supercontinuum generation spanning over an octave from a
silicon germanium-on-silicon waveguide using∼ 200fs pulses at a wavelength of 4 µm. The …
silicon germanium-on-silicon waveguide using∼ 200fs pulses at a wavelength of 4 µm. The …