Silicon oxynitride-on-glass waveguide array refractometer with wide sensing range and integrated read-out (Conference Presentation)

2017 ◽  
Author(s):  
Jaime Viegas ◽  
Mona Mayeh ◽  
Pradeep Srinivasan ◽  
Eric G. Johnson ◽  
Paulo V. S. Marques ◽  
...  
Keyword(s):  
Silicon Oxynitride ◽  
Waveguide Array ◽  
Sensing Range ◽  
Glass Waveguide

A Multi-Sensing-Range Method for Efficient Position Estimation by Passive RFID Technology

2009 ◽  
Vol E92-A (10) ◽  
pp. 2609-2617 ◽  
Author(s):  
Toshihiro HORI ◽  
Tomotaka WADA ◽  
Norie UCHITOMI ◽  
Kouichi MUTSUURA ◽  
Hiromi OKADA
Keyword(s):  
Position Estimation ◽  
Rfid Technology ◽  
Sensing Range ◽  
Passive Rfid

Intensity dynamics in a waveguide array laser

2011 ◽  
Vol 284 (4) ◽  
pp. 971-978 ◽  
Author(s):  
Mingming Feng ◽  
Matthew O. Williams ◽  
J. Nathan Kutz ◽  
Kevin L. Silverman ◽  
Richard P. Mirin ◽  
...  
Keyword(s):  
Waveguide Array

scholarly journals Critical angle reflection imaging for quantification of molecular interactions on glass surface

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Guangzhong Ma ◽  
Runli Liang ◽  
Zijian Wan ◽  
Shaopeng Wang
Keyword(s):  
Refractive Index ◽  
Small Molecule ◽  
Molecular Interactions ◽  
Glass Surface ◽  
Critical Angle ◽  
Dynamic Range ◽  
Refractive Index Change ◽  
Label Free ◽  
Index Change ◽  
Sensing Range

AbstractQuantification of molecular interactions on a surface is typically achieved via label-free techniques such as surface plasmon resonance (SPR). The sensitivity of SPR originates from the characteristic that the SPR angle is sensitive to the surface refractive index change. Analogously, in another interfacial optical phenomenon, total internal reflection, the critical angle is also refractive index dependent. Therefore, surface refractive index change can also be quantified by measuring the reflectivity near the critical angle. Based on this concept, we develop a method called critical angle reflection (CAR) imaging to quantify molecular interactions on glass surface. CAR imaging can be performed on SPR imaging setups. Through a side-by-side comparison, we show that CAR is capable of most molecular interaction measurements that SPR performs, including proteins, nucleic acids and cell-based detections. In addition, we show that CAR can detect small molecule bindings and intracellular signals beyond SPR sensing range. CAR exhibits several distinct characteristics, including tunable sensitivity and dynamic range, deeper vertical sensing range, fluorescence compatibility, broader wavelength and polarization of light selection, and glass surface chemistry. We anticipate CAR can expand SPR′s capability in small molecule detection, whole cell-based detection, simultaneous fluorescence imaging, and broader conjugation chemistry.

Flexible M-Tooth Hybrid Micro-Structure Based Capacitive Pressure Sensor with High Sensitivity and Wide Sensing Range

2021 ◽  
pp. 1-1
Author(s):  
Valliammai Palaniappan ◽  
Masoud Panahi ◽  
Dinesh Maddipatla ◽  
Xingzhe Zhang ◽  
Simin Masihi ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
High Sensitivity ◽  
Capacitive Pressure Sensor ◽  
Micro Structure ◽  
Sensing Range
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