scholarly journals ON-CHIP OPTOFLUIDIC RING RESONATOR SENSOR FOR MICRO-SCALE GAS CHROMATOGRAPHY

Author(s):  
K. Scholten ◽  
X. Fan ◽  
E. Zellers
Lab on a Chip ◽  
2014 ◽  
Vol 14 (19) ◽  
pp. 3873-3880 ◽  
Author(s):  
Kee Scholten ◽  
Xudong Fan ◽  
Edward T. Zellers

A microfabricated optofluidic ring resonator (μOFRR) sensor is introduced and its utility as a detector for micro-scale gas chromatography is assessed.


Nanoscale ◽  
2015 ◽  
Vol 7 (20) ◽  
pp. 9282-9289 ◽  
Author(s):  
K. Scholten ◽  
W. R. Collin ◽  
X. Fan ◽  
E. T. Zellers

A microfabricated optofluidic ring resonator (μOFRR) sensor with a monolayer-protected nanoparticle interface layer is introduced and evaluated as a detector for micro-scale gas chromatography.


2021 ◽  
pp. 1-1
Author(s):  
Linpeng Gu ◽  
Yuan Qingchen ◽  
Qiang Zhao ◽  
Ji Yafei ◽  
Liu Ziyu ◽  
...  

2019 ◽  
Vol 27 (7) ◽  
pp. 1513-1526 ◽  
Author(s):  
Yuan Liang ◽  
Chirn Chye Boon ◽  
Chenyang Li ◽  
Xiao-Lan Tang ◽  
Herman Jalli Ng ◽  
...  

2021 ◽  
Author(s):  
L. Tozzetti ◽  
A. Giacobbe ◽  
F. Di Pasquale ◽  
S. Faralli

2008 ◽  
Vol 1133 ◽  
Author(s):  
Yuze Sun ◽  
Siyka I. Shopova ◽  
Ian M. White ◽  
Hongying Zhu ◽  
Greg Frye-Mason ◽  
...  

Abstract We develop rapid chemical vapor sensors and micro gas chromatography (μGC) analyzers based on the optofluidic ring resonator (OFRR). An OFRR is a micro-sized thin-walled glass capillary; the circular cross-section of the capillary acts as an optical ring resonator while the whispering gallery modes or circulating waveguide modes (WGMs) supported by the ring resonator interact with the vapor samples passing through the capillary. The OFRR interior surface is coated with a vapor-sensitive polymer. The analyte and polymer interaction causes the polymer refractive index (RI) and the thickness to change, which is detected as a WGM spectral shift. Owing to the excellent fluidics, the OFRR vapor sensor exhibits sub-second detection and recovery time with a flow rate of 1 mL/min. On-column separation and detection in the OFRR based μGC system is also demonstrated, showing efficient separation of vapor mixtures and presenting highly reproducible retention time for the individual analyte. Compared to the conventional GC system, the OFRR μGC has the advantage of small size, rapid response, and high selectivity over a short length of column.


Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3416 ◽  
Author(s):  
Nikolay Lvovich Kazanskiy ◽  
Svetlana Nikolaevna Khonina ◽  
Muhammad Ali Butt

In this paper, a racetrack ring resonator design based on a subwavelength grating double slot waveguide is presented. The proposed waveguide scheme is capable of confining the transverse electric field in the slots and the gaps between the grating segments. This configuration facilitates a large light–matter interaction which elevates the sensitivity of the device approximately 2.5 times higher than the one that can be obtained via a standard slot waveguide resonator. The best sensitivity of the design is obtained at 1000 nm/RIU by utilizing a subwavelength grating double slot waveguide of period 300 nm. The numerical study is conducted via 2D and 3D finite element methods. We believe that the proposed sensor design can play an important role in the realization of highly sensitive lab-on-chip sensors.


2011 ◽  
Vol 98 (6) ◽  
pp. 061103 ◽  
Author(s):  
Wonsuk Lee ◽  
Hao Li ◽  
Jonathan D. Suter ◽  
Karthik Reddy ◽  
Yuze Sun ◽  
...  
Keyword(s):  

2018 ◽  
Vol 8 (12) ◽  
pp. 2572 ◽  
Author(s):  
Atiyeh Zarifi ◽  
Birgit Stiller ◽  
Moritz Merklein ◽  
Benjamin Eggleton

Brillouin distributed measurement techniques have been extensively developed for structural health monitoring using fibre optic nerve systems. The recent advancement in the spatial resolution capabilities of correlation-based Brillouin distributed technique have reached the sub-mm regime, making this approach a suitable candidate for monitoring and characterizing integrated photonic devices. The small dimension associated with the short length of these devices—on the order of the cm- and mm-scale—requires high sensitivity detection techniques and sub-mm spatial resolution. In this paper, we provide an overview of the different Brillouin sensing techniques in various micro-scale structures such as photonic crystal fibres, microfibres, and on-chip waveguides. We show how Brillouin sensing is capable of detecting fine transverse geometrical features with the sensitivity of a few nm and also extremely small longitudinal features on the order of a few hundreds of μ m . We focus on the technique of Brillouin optical correlation domain analysis (BOCDA), which enables such high spatial resolution for mapping the opto-acoustic responses of micro-scale waveguides.


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