scholarly journals Silicon-on-insulator mid-infrared planar concave grating based (de)multiplexer

2013 ◽  
Author(s):  
M. Muneeb ◽  
X. Chen ◽  
E. Ryckeboer ◽  
A. Malik ◽  
G. Z. Mashanovich ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Mid Infrared ◽  
Planar Concave Grating ◽  
Concave Grating

scholarly journals Germanium-on-silicon planar concave grating wavelength (de)multiplexers in the mid-infrared

2013 ◽  
Vol 103 (16) ◽  
pp. 161119 ◽  
Author(s):  
Aditya Malik ◽  
Muhammad Muneeb ◽  
Yosuke Shimura ◽  
Joris Van Campenhout ◽  
Roger Loo ◽  
...  
Keyword(s):  
Mid Infrared ◽  
Planar Concave Grating ◽  
Concave Grating

scholarly journals Planar Concave Grating Demultiplexer on a Nanophotonic Silicon-on-Insulator Platform

2006 ◽  
Author(s):  
Joost Brouckaert ◽  
Wim Bogaerts ◽  
Pieter Dumon ◽  
Jonathan Schrauwen ◽  
Dries Van Thourhout ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Planar Concave Grating ◽  
Concave Grating

scholarly journals Planar Concave Grating Demultiplexer Fabricated on a Nanophotonic Silicon-on-Insulator Platform

2007 ◽  
Vol 25 (5) ◽  
pp. 1269-1275 ◽  
Author(s):  
Joost Brouckaert ◽  
Wim Bogaerts ◽  
Pieter Dumon ◽  
Dries Van Thourhout ◽  
Roel Baets
Keyword(s):  
Silicon On Insulator ◽  
Planar Concave Grating ◽  
Concave Grating

scholarly journals Towards lab-on-chip ultrasensitive ethanol detection using photonic crystal waveguide operating in the mid infrared

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ali Rostamian ◽  
Ehsan Madadi-Kandjani ◽  
Hamed Dalir ◽  
Volker J. Sorger ◽  
Ray T. Chen
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
High Sensitivity ◽  
Guided Wave ◽  
Silicon On Insulator ◽  
Group Index ◽  
Photonic Crystal Waveguide ◽  
Mid Infrared ◽  
Lab On Chip ◽  
On Chip

Abstract Thanks to the unique molecular fingerprints in the mid-infrared spectral region, absorption spectroscopy in this regime has attracted widespread attention in recent years. Contrary to commercially available infrared spectrometers, which are limited by being bulky and cost-intensive, laboratory-on-chip infrared spectrometers can offer sensor advancements including raw sensing performance in addition to use such as enhanced portability. Several platforms have been proposed in the past for on-chip ethanol detection. However, selective sensing with high sensitivity at room temperature has remained a challenge. Here, we experimentally demonstrate an on-chip ethyl alcohol sensor based on a holey photonic crystal waveguide on silicon on insulator-based photonics sensing platform offering an enhanced photoabsorption thus improving sensitivity. This is achieved by designing and engineering an optical slow-light mode with a high group-index of n g  = 73 and a strong localization of modal power in analyte, enabled by the photonic crystal waveguide structure. This approach includes a codesign paradigm that uniquely features an increased effective path length traversed by the guided wave through the to-be-sensed gas analyte. This PIC-based lab-on-chip sensor is exemplary, spectrally designed to operate at the center wavelength of 3.4 μm to match the peak absorbance for ethanol. However, the slow-light enhancement concept is universal offering to cover a wide design-window and spectral ranges towards sensing a plurality of gas species. Using the holey photonic crystal waveguide, we demonstrate the capability of achieving parts per billion levels of gas detection precision. High sensitivity combined with tailorable spectral range along with a compact form-factor enables a new class of portable photonic sensor platforms when combined with integrated with quantum cascade laser and detectors.

scholarly journals Mid-infrared wavelength division (de)multiplexer using an interleaved angled multimode interferometer on the silicon-on-insulator platform

2014 ◽  
Vol 39 (6) ◽  
pp. 1406 ◽  
Author(s):  
Y. Hu ◽  
T. Li ◽  
D. J. Thomson ◽  
X. Chen ◽  
J. Soler Penades ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Mid Infrared ◽  
Infrared Wavelength ◽  
Wavelength Division

Planar concave grating demultiplexer for coarse WDM based on confocal ellipses

2004 ◽  
Vol 237 (1-3) ◽  
pp. 71-77 ◽  
Author(s):  
Xianling Chen ◽  
J.N. McMullin ◽  
C.J. Haugen ◽  
R.G. DeCorby
Keyword(s):  
Planar Concave Grating ◽  
Concave Grating

Dispersion engineering and thermo-optic tuning in mid-infrared photonic crystal slow light waveguides on silicon-on-insulator

2018 ◽  
Vol 43 (22) ◽  
pp. 5504 ◽  
Author(s):  
Yiming Ma ◽  
Bowei Dong ◽  
Bo Li ◽  
Kah-Wee Ang ◽  
Chengkuo Lee
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
Silicon On Insulator ◽  
Mid Infrared ◽  
Dispersion Engineering
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