Sensors, Vol. 19, Pages 4101: Multipurpose Polymer Bragg Grating-Based Optomechanical Sensor Pad
Sensors, Vol. 19, Pages 4101: Multipurpose Polymer Bragg Grating-Based Optomechanical Sensor Pad
Sensors doi: 10.3390/s19194101
Authors:
Steffen Hessler
Patrick Bott
Stefan Kefer
Bernhard Schmauss
Ralf Hellmann
Flexible epoxy waveguide Bragg gratings are fabricated on a low-modulus TPX™ polymethylpentene polyolefin substrate for an easy to manufacture and low-cost optomechanical sensor pad providing exceedingly multipurpose application potentials. Rectangular EpoCore negative resist strip waveguides are formed employing standard UV mask lithography. Highly persistent Bragg gratings are inscribed directly into the channel waveguides by permanently modifying the local refractive indices through a well-defined KrF excimer laser irradiated +1/-1 order phase mask. The reproducible and vastly versatile sensing capabilities of this easy-to-apply optomechanical sensor pad are demonstrated in the form of an optical pickup for acoustic instruments, a broadband optical accelerometer, and a biomedical vital sign sensor monitoring both respiration and pulse at the same time.
Source: Sensors - Category: Biotechnology Authors: Steffen Hessler Patrick Bott Stefan Kefer Bernhard Schmauss Ralf Hellmann Tags: Article Source Type: research
More News: Biotechnology | Opthalmology