Photonic crystal slot-microcavity circuit implemented in silicon-on-insulator: High Q operation in solvent without undercutting

2013 ◽  
Vol 102 (13) ◽  
pp. 131115 ◽  
Author(s):  
S. Hamed Mirsadeghi ◽  
Ellen Schelew ◽  
Jeff F. Young
Keyword(s):  
Photonic Crystal ◽  
Silicon On Insulator ◽  
High Q

High-Q silicon-on-insulator slot photonic crystal cavity infiltrated by a liquid

2013 ◽  
Vol 103 (25) ◽  
pp. 251106 ◽  
Author(s):  
Charles Caër ◽  
Xavier Le Roux ◽  
Eric Cassan
Keyword(s):  
Photonic Crystal ◽  
Silicon On Insulator ◽  
Photonic Crystal Cavity ◽  
High Q

Liquid sensor based on high-Q slot photonic crystal cavity in silicon-on-insulator configuration

2014 ◽  
Vol 39 (20) ◽  
pp. 5792 ◽  
Author(s):  
Charles Caër ◽  
Samuel F. Serna-Otálvaro ◽  
Weiwei Zhang ◽  
Xavier Le Roux ◽  
Eric Cassan
Keyword(s):  
Photonic Crystal ◽  
Silicon On Insulator ◽  
Photonic Crystal Cavity ◽  
High Q

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.

High Q chalcogenide photonic crystal nanobeam cavities

2021 ◽  
pp. 1-1
Author(s):  
Mingyue Zhao ◽  
Zhen Yang ◽  
Rizhen Zhang ◽  
Jiajiu Zheng ◽  
Peipeng Xu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
High Q ◽  
Nanobeam Cavities

scholarly journals High-Q aluminum nitride photonic crystal nanobeam cavities

2012 ◽  
Vol 100 (9) ◽  
pp. 091105 ◽  
Author(s):  
W. H. P. Pernice ◽  
C. Xiong ◽  
C. Schuck ◽  
H. X. Tang
Keyword(s):  
Photonic Crystal ◽  
Aluminum Nitride ◽  
High Q ◽  
Nanobeam Cavities

High-Q AlN ladder-structure photonic crystal nanocavity fabricated by layer transfer

2013 ◽  
Vol 10 (11) ◽  
pp. 1517-1520 ◽  
Author(s):  
Sylvain Sergent ◽  
Munetaka Arita ◽  
Satoshi Kako ◽  
Katsuaki Tanabe ◽  
Satoshi Iwamoto ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Layer Transfer ◽  
Ladder Structure ◽  
High Q
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