Mid-Infrared Opto-nanofluidics for on-Chip Chemical Sensing

2014 ◽  
Author(s):  
Pao Tai Lin ◽  
Sen Wai Kwok ◽  
Hao-Yu Greg Lin ◽  
Vivek Singh ◽  
Dawn T. H. Tan ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Mid Infrared ◽  
On Chip

Mid-Infrared Opto-Nanofluidic Slot-Waveguide for Label-Free On-Chip Chemical Sensing

2014 ◽  
Author(s):  
Pao Lin ◽  
Sen Wai Kwok ◽  
Hao-Yu Greg Lin ◽  
Vivek Singh ◽  
Lionel C. Kimerling ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Slot Waveguide ◽  
Label Free ◽  
Mid Infrared ◽  
On Chip

Cavity-enhanced mid-infrared on-chip chemical sensing using high-Q chalcogenide glass resonators

2013 ◽  
Author(s):  
Hongtao Lin ◽  
Yesh Chillakuru ◽  
Kati McLaughlin ◽  
Lan Li ◽  
Yi Zou ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Chemical Sensing ◽  
Mid Infrared ◽  
High Q ◽  
On Chip

Mid-infrared opto-nanofluidics for on-chip chemical sensing

2014 ◽  
Author(s):  
Pao Tai Lin ◽  
Sen Wai Kwok ◽  
Hao-Yu Greg Lin ◽  
Vivek Singh ◽  
Lionel C. Kimerling ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Mid Infrared ◽  
On Chip

Mid-Infrared Opto-nanofluidic Slot-Waveguide for Label-free On-Chip Chemical Sensing

2014 ◽  
Author(s):  
Pao Tai Lin ◽  
Sen Wai Kwok ◽  
Hao-Yu Greg Lin ◽  
Vivek Singh ◽  
Lionel C. Kimerling ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Slot Waveguide ◽  
Label Free ◽  
Mid Infrared ◽  
On Chip

Mid-Infrared Spectrometer Using Opto-Nanofluidic Slot-Waveguide for Label-Free On-Chip Chemical Sensing

Nano Letters ◽  
2013 ◽  
Vol 14 (1) ◽  
pp. 231-238 ◽  
Author(s):  
Pao Tai Lin ◽  
Sen Wai Kwok ◽  
Hao-Yu Greg Lin ◽  
Vivek Singh ◽  
Lionel C. Kimerling ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Slot Waveguide ◽  
Label Free ◽  
Mid Infrared ◽  
Infrared Spectrometer ◽  
On Chip

Review of Microfluidic Devices for On-Chip Chemical Sensing

2016 ◽  
Vol 136 (6) ◽  
pp. 244-249
Author(s):  
Takahiro Watanabe ◽  
Fumihiro Sassa ◽  
Yoshitaka Yoshizumi ◽  
Hiroaki Suzuki
Keyword(s):  
Chemical Sensing ◽  
Microfluidic Devices ◽  
On Chip

scholarly journals Design of mid-infrared filter array based on plasmonic metal nanodiscs array and its application to on-chip spectrometer

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hwa-Seub Lee ◽  
Gyu-Weon Hwang ◽  
Tae-Yeon Seong ◽  
Jongkil Park ◽  
Jae Wook Kim ◽  
...  
Keyword(s):  
Nanoimprint Lithography ◽  
Filter Design ◽  
Reconstruction Technique ◽  
Filter Function ◽  
Promising Alternative ◽  
Mid Infrared ◽  
Spectrum Reconstruction ◽  
Filter Array ◽  
On Chip ◽  
Multispectral Filter Array

AbstractMid-infrared wavelengths are called the molecular fingerprint region because it contains the fundamental vibrational modes inherent to the substances of interest. Since the mid-infrared spectrum can provide non-destructive identification and quantitative analysis of unknown substances, miniaturized mid-infrared spectrometers for on-site diagnosis have attained great concern. Filter-array based on-chip spectrometer has been regarded as a promising alternative. In this study, we explore a way of applying a pillar-type plasmonic nanodiscs array, which is advantageous not only for excellent tunability of resonance wavelength but also for 2-dimensional integration through a single layer process, to the multispectral filter array for the on-chip spectrometer. We theoretically and experimentally investigated the optical properties of multi-periodic triangular lattices of metal nanodiscs array that act as stopband filters in the mid-infrared region. Soft-mold reverse nanoimprint lithography with a subsequent lift-off process was employed to fabricate the multispectral filter array and its filter function was successfully extracted using a Fourier transform infrared microscope. With the measured filter function, we tested the feasibility of target spectrum reconstruction using a Tikhonov regularization method for an ill-posed linear problem and evaluated its applicability to the infrared spectroscopic sensor that monitors an oil condition. These results not only verify that the multispectral filter array composed of stopband filters based on the metal nanodiscs array when combined with the spectrum reconstruction technique, has great potential for use to a miniaturized mid-infrared on-chip spectrometer, but also provide effective guidance for the filter design.

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.

Integrated photonic crystal waveguides on silicon-on-sapphire for chemical sensing in mid-infrared

2015 ◽  
Author(s):  
Yi Zou ◽  
Swapnajit Chakravarty ◽  
Xiaochuan Xu ◽  
Ray T. Chen
Keyword(s):  
Photonic Crystal ◽  
Chemical Sensing ◽  
Photonic Crystal Waveguides ◽  
Mid Infrared

Graphene-Based Fabry-Perot Resonator for Chemical Sensing Applications at Mid-Infrared Frequencies

2018 ◽  
Vol 30 (22) ◽  
pp. 1917-1920 ◽  
Author(s):  
Mohammad Mahdi Ghods ◽  
Pejman Rezaei
Keyword(s):  
Chemical Sensing ◽  
Mid Infrared ◽  
Sensing Applications ◽  
Fabry Perot ◽  
Infrared Frequencies
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