Femtosecond Laser-inscribed Non-volatile Integrated Optical Switch in Fused Silica based on Microfluidics-controlled Total Internal Reflection

We describe a waveguide capillary cell based on a fused-silica tube coated externally with a thin layer of a low-refractive-index ( n = 1.31) fluoropolymer. When filled with a transparent liquid of refractive index greater than that of the fluoropolymer, the cell is capable of transmitting light through total internal reflection. Loss below 1 dB/m is demonstrated throughout much of the visible region for a 530-μm-i.d., 660-μm-o.d. cell filled with water.

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Slow light total-internal-reflection optical switch with 90-degree bend

2008 Conference on Lasers and Electro-Optics ◽

10.1109/cleo.2008.4552371 ◽

2008 ◽

Cited By ~ 2

Author(s):

Ayumi Fuchida ◽

Fumio Koyama

Keyword(s):

Total Internal Reflection ◽

Slow Light ◽

Optical Switch ◽

Internal Reflection

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The use of 2D and 3D WA-BPM models to analyze total-internal-reflection-based integrated optical switches

10.1117/12.899312 ◽

2011 ◽

Cited By ~ 1

Author(s):

Pengfei Wang ◽

Gilberto Brambilla ◽

Yuliya Semenova ◽

Qiang Wu ◽

Jie Zheng ◽

...

Keyword(s):

Total Internal Reflection ◽

Optical Switches ◽

Internal Reflection ◽

Integrated Optical ◽

2D And 3D

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Total Internal Reflection Fluorescence for Adsorbed Probe Molecule Studies of Liquid/Solid Interfacial Environments

Applied Spectroscopy ◽

10.1366/0003702894201932 ◽

1989 ◽

Vol 43 (1) ◽

pp. 81-87 ◽

Cited By ~ 19

Author(s):

K. C. Hartner ◽

J. W. Carr ◽

J. M. Harris

Keyword(s):

Total Internal Reflection ◽

Saturated Vapor ◽

Fused Silica ◽

Internal Reflection ◽

Total Internal Reflection Fluorescence ◽

Depth Of Penetration ◽

Excitation Beam ◽

Adsorption Equilibria ◽

Evanescent Excitation ◽

Fluorescent Molecules

Total internal reflection fluorescence (TIRF) is developed as a surface selective method to allow the environment of a liquid/solid interface to be probed by fluorescent molecules which are adsorbed from solution. The method has been used to detect pyrene sorbed to an octadecylsilane-derivatized fused-silica plate and resolve its spectral emission so that vibronic intensity ratios can be calculated and the surface environment characterized. Adsorption equilibria of the fluorescent probe to the surface and the depth of penetration of the evanescent excitation beam provide the basis for predicting interference from probe molecules in the solution phase. These predictions were validated by replacing the solution overlaying the alkylated silica interface with saturated vapor and comparing the apparent surface environments.

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