Thermally Induced Focusing Effect In Planar Optical Waveguides

1987 ◽  
Author(s):  
Andrzej W. Domanski ◽  
Tomasz Wojcik ◽  
Miroslaw Zielonka
Keyword(s):  
Optical Waveguides ◽  
Thermally Induced ◽  
Focusing Effect ◽  
Induced Focusing ◽  
Planar Optical Waveguides

Planar optical waveguides in Nd:BSO crystals fabricated by He and C ion implantation

2011 ◽  
Vol 33 (3) ◽  
pp. 385-388 ◽  
Author(s):  
Tao Liu ◽  
Sha-Sha Guo ◽  
Jin-Hua Zhao ◽  
Jing Guan ◽  
Xue-Lin Wang
Keyword(s):  
Ion Implantation ◽  
Optical Waveguides ◽  
Planar Optical Waveguides

Voltage-switchable Bragg reflector for planar optical waveguides

2002 ◽  
Vol 13 (2-4) ◽  
pp. 377-380
Author(s):  
W.R Frank ◽  
A.O Govorov ◽  
W Wegscheider ◽  
K Karrai ◽  
J.P Kotthaus
Keyword(s):  
Optical Waveguides ◽  
Bragg Reflector ◽  
Planar Optical Waveguides

Synthesis and Analysis of Planar Optical Waveguides as pH Sensors

2018 ◽  
Vol 11 (1) ◽  
pp. 40-44
Author(s):  
S.S. Gaur ◽  
Pramod K. Singh ◽  
Anshul Gupta ◽  
Rahul Singh ◽  
Yogesh Kumar
Keyword(s):  
Optical Waveguides ◽  
Ph Sensors ◽  
Planar Optical Waveguides

Femtosecond holography in planar optical waveguides

2006 ◽  
Author(s):  
S. A. Aseyev ◽  
M. A. Cervantes ◽  
S. V. Chekalin ◽  
V. O. Kompanets ◽  
Yu.A. Matveets ◽  
...  
Keyword(s):  
Optical Waveguides ◽  
Planar Optical Waveguides

scholarly journals 3D Hydrodynamic Focusing in Microscale Optofluidic Channels Formed with a Single Sacrificial Layer

Micromachines ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 349 ◽  
Author(s):  
Erik S. Hamilton ◽  
Vahid Ganjalizadeh ◽  
Joel G. Wright ◽  
Holger Schmidt ◽  
Aaron R. Hawkins
Keyword(s):  
Cross Sections ◽  
Optical Waveguides ◽  
Sacrificial Layer ◽  
Three Dimensional ◽  
Single Layer ◽  
Detection Sensitivity ◽  
Low Flow ◽  
Hydrodynamic Focusing ◽  
Induced Focusing ◽  
Pressure Driven Flow

Optofluidic devices are capable of detecting single molecules, but greater sensitivity and specificity is desired through hydrodynamic focusing (HDF). Three-dimensional (3D) hydrodynamic focusing was implemented in 10-μm scale microchannel cross-sections made with a single sacrificial layer. HDF is achieved using buffer fluid to sheath the sample fluid, requiring four fluid ports to operate by pressure driven flow. A low-pressure chamber, or pit, formed by etching into a substrate, enables volumetric flow ratio-induced focusing at a low flow velocity. The single layer design simplifies surface micromachining and improves device yield by 1.56 times over previous work. The focusing design was integrated with optical waveguides and used in order to analyze fluorescent signals from beads in fluid flow. The implementation of the focusing scheme was found to narrow the distribution of bead velocity and fluorescent signal, giving rise to 33% more consistent signal. Reservoir effects were observed at low operational vacuum pressures and a balance between optofluidic signal variance and intensity was achieved. The implementation of the design in optofluidic sensors will enable higher detection sensitivity and sample specificity.

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