scholarly journals Total Internal Reflection Transient Absorption Microscopy: An Online Detection Method for Microfluidics

2020 ◽  
Vol 124 (20) ◽  
pp. 4160-4170 ◽  
Author(s):  
Brandon A. Colon ◽  
Muhammad Redwan Hassan ◽  
Amirus Saleheen ◽  
Christopher A. Baker ◽  
Tessa R. Calhoun
Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2473
Author(s):  
Nian Xiong ◽  
Tian Guan ◽  
Yang Xu ◽  
Lixuan Shi ◽  
Suyi Zhong ◽  
...  

Self-reference detection is necessary and important to a biosensor. The linear weak measurement system based on total internal reflection has attracted widespread attention due to its high stability, label-free detection, and easy integration. In this paper, we propose a differential detection method based on the linear total internal reflection weak measurement system. We introduce the half-wave plate (HWP) to convert the H light and the V light to each other, thereby obtaining the difference in phase change of the optical path before and after the HWP. Experiments show that the system can not only achieve differential detection, but also has high stability. The linear differential weak measurement system proposed in this paper not only provides a new differential measurement method for real-time biosensors, but also enriches the types of weak measurement sensors.


1972 ◽  
Vol 50 (1) ◽  
pp. 52-56 ◽  
Author(s):  
L. Arthur ◽  
A. Read ◽  
I. R. Dagg ◽  
G. E. Reesor

Microwave phase measurements, using the Robertson homodyne detection method, have been made in the field outside a dielectric prism after microwave energy has experienced total internal reflection. The phase changes that occur in this case are explained by extending Artmann's theory of the Goos-Hänchen effect to microwave optics. Satisfactory agreement between the theory and measurements has been obtained for angles of incidence from 40 to 50° on a dielectric boundary for which the critical angle is 36.4°.


2020 ◽  
pp. 44-49
Author(s):  
I. N. Pavlov

Two optical methods, namely surface plasmon resonance imaging and frustrated total internal reflection, are described in the paper in terms of comparing their sensitivity to change of refractive index of a thin boundary layer of an investigated medium. It is shown that, despite the fact that the theoretically calculated sensitivity is higher for the frustrated total internal reflection method, and the fact that usually in practice the surface plasmon resonance method, on the contrary, is considered more sensitive, under the same experimental conditions both methods show a similar result.


Author(s):  
Ya-Chi Lu ◽  
Jhong-Syuan Li ◽  
Kao-Der Chang ◽  
Shie-Chang Jeng ◽  
Jui-Wen Pan

Author(s):  
Ya-Chi Lu ◽  
Jhong-Syuan Li ◽  
Kao-Der Chang ◽  
Shie-Chang Jeng ◽  
Jui-Wen Pan

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