4 edition of Optical sensors based on single arm thin film waveguide interferometer found in the catalog.
Optical sensors based on single arm thin film waveguide interferometer
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va
Written in English
|Statement||principal investigator, Sergey S. Sarkisov.|
|Series||[NASA contractor report] -- NASA-CR-205675., NASA contractor report -- NASA CR-205675.|
|Contributions||United States. National Aeronautics and Space Administration.|
|The Physical Object|
The existing sensors based on the graphene optical adsorption property is less and need to be further researched. Biological sensors based on the graphene molecular adsorption property. Graphene, a new kind of sensitive material, is able to adsorb a variety of molecules, such as heavy metal ions, organic molecules, gas molecules, etc. Interferometry is a family of techniques in which waves, usually electromagnetic waves, are superimposed, causing the phenomenon of interference, which is used to extract information. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications to .
A simple integrated Young interferometer sensor was prepared on a glass substrate with a pair of single-mode straight channel waveguides 75 μm apart. A tapered thin film of TiO2 was locally deposited on one channel to form a composite waveguide sensing arm with a greatly enhanced evanescent field. With the prism-coupling method a single beam of laser light was simultaneously . optic fluorescence oxygen sensor for monitoring human breathing. A POF based force change based breathing rate sensor was reported by Mohanty 6]. Kang et al [et al  designed an optical fiberbased breathing sensor by applying a multilayered inorganic nanocluster and polymer thin films on the distal ends of optical fibers. The sensor.
Optical Sensors Based on Single Arm Thin Film Waveguide Interferometers 1 Sergey Sarkisov, Andre Taylor, and Putcha Venkateswarlu Alabama A&M University Meridian Street P.O. Box 1 Normal, Alabama ABSTRACT Optical waveguide sensors are promising tools in reliable aeropropulsion control systems. The signal arm of the F–P interferometer is organically combined with the ultra-small GRIN fiber probe to establish the theoretical model of the novel F–P interferometer. The Nafion ® thin film acts as an active resonance cavity of the low-coherence An experimental study of a high temperature distributed optical fiber sensor based.
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The sensor employs single-beam polarimetric interferometry to detect molecular adsorption in the mesoporous silica film because the adsorption can lead to a change of the phase difference (Δ ϕ) between the fundamental transverse electric (TE 0) and magnetic (TM 0) modes propagating in the by: OPTICAL SENSORS BASED ON SINGLE ARM THIN FILM WAVEGUIDE INTERFEROMETER Performance Report 2-nd Year of Three-year Grant Principal Investigator: Dr.
Sergey S. Sarkisov Period: November l, to Octo Alabama Agricultural and Mechanical University Office of Research and Development Meridian Road,Normal, Alabama Get this from a library. Optical sensors based on single arm thin film waveguide interferometer: performance report, 1st year of three-year grant ; period--August 1, to Octo ; NASA grant NAG [Sergey S Sarkisov; United.
Optical Sensors Based on Single Arm Thin Film Waveguide Interferometer. By D. Diggs, S. Sarkisov, Grigory Adamovsky and M. Curley. Abstract. Single-arm double-mode double-order optical waveguide interferometer utilizes interference between two propagating modes of different orders.
Sensing effect results from the change in propagation. Optical Sensors based on single arm thin film Waveguide Interferometer.
We choose adjustable prism couplers for connecting the sensor to optical fiber lines in our design of a breadboard prototype of the sensor. These couplers have good coupling efficiency at relatively low cost comparing to any other alternatives such as grating couplers Author: Sergey S.
Sarkisov. Optical Sensors Based on Single Arm Thin Film Waveguide Interferometer This optical fiber line is a prototype of actual optical communication links connecting real sensors to a control unit within an aircraft or spacecraft.
An important problem which we are planning to focus on during the second year is coupling of optical fiber line to the Author: Sergey S. Sarkisov.
OPTICAL SENSORS BASED ON SINGLE ARM THIN FILM WAVEGUIDE INTERFEROMETER i r-_,-_i Performance Report 1-st Year of Three-year Grant Principal Investigator: Dr. Sergey S. Sarkisov Period: August 1, to Octo Alabama Agricultural and Mechanical University Office of Research and Development Meridian Road,Normal.
7 December Polymer single-arm optical waveguide interferometer for detection of toxic industrial materials Sergey S. Sarkisov, Michael J.
Curley, Grigory Adamovsky Author Affiliations +. We describe a novel sensor of ammonia based on a planar optical waveguide made of a thin film of polymer polyimide doped with indicator dye bromocresol purple. The film of dye-doped polyimide demonstrated reversible increase of absorption with a peak near nm in response to presence of ammonia in ambient air.
Optical interferometry as a precision metrology has been widely employed in many aspects for accurate measurements of various physical quantities. As an important branch of measurement technology, now the fiber-optic interferometry technology, based on fiber-optic and laser technologies, has been developed and widely applied in sensor fields for detections of various.
In this study, we proposed and fabricated optical sensor module integrated onto optical-electrical printed circuit board (PCB) for gas detection based on polymer waveguide with tin oxide thin film. Their potential application as gas sensors are confirmed through computational simulation using the two dimensional finite-difference time-domain.
A sensor is described for which interference measurements of the phase delay between two propagating modes of different orders in a slab thin-film waveguide are used as the sensing technique. Without the need of directed transport of biomolecules onto individual nanoscale sensor structures, waveguide interferometers in practice typically have one or even two orders of magnitude better detection limit for surface mass density and refractive index changes calculated for a macroscopic sensor area than e.g., microring resonators.
The responses of a polymeric optical waveguide sensor and a polymer coated Lamb wave piezoelectric sensor are used to characterize the chemical interaction of an analyte with the polymer layer.
Evaluation of polymeric thin film waveguides as chemical sensors (February 09 ) Polymer single arm optical waveguide interferometer for. Single-arm dual-mode optical waveguide interferometer utilizes interference between two modes of different order. Sensing effect results from the change in propagation conditions of the modes caused by the environment.
The waveguide is made as an open asymmetric structure containing a dye-doped polymer film onto a quartz substrate. A refractive index sensor based on a three-layered polymeric waveguide was proposed and demonstrated.
A high-index thin film in TiO 2 was placed on top of the waveguide in the sensing region, playing the role of strengthening the evanescent field to enhance the sensitivity of the sensor.
The refractive index of the analyte applied to the surface of the sensor was estimated by observing the. Precision optical displacement sensor based on ultra-thin film photodiode type optical interferometers Article in Measurement Science and Technology 14(4) March with 30 Reads.
An advantage of these distributed sensors, as compared to sensors based on conventional cascaded interferometer architecture, is that the cascade can be represented by any long single-mode optical.
In this work, we investigated optical sensors consisting of a single-arm waveguide where analyte-induced optical birefringence occurs for signal transducing. A novel refractive index sensor, consisting of a polymer channel waveguide overlaid with TiO 2 thin film to activate an optical evanescent mode, is demonstrated.
A thin sensing film, consisting of a polymer matrix and a dye, was coated onto the optical waveguide (OWG) surface.
Its response was reversible and quick. A thin (ca. 10 μm) film of bacteriorhodopsin was deposited on the top of the reference waveguide branch by layering and drying. A diode laser light ( nm, 10 mW) was coupled into a single-mode optical waveguide, whose other end was matched to the input of the MZ interferometer by a micropositioner, and its optimal position was fixed by a.
We propose an ultra high sensitive integrated optical waveguide refractive index sensor based on multimode interference which can be integrated with other sensing elements on a single chip.
The proposed sensor has ultra high sensitivity around communication wavelength ( μm) varying from ∼ () to 33, (26,) nm/RIU for TM (TE. Based on semiconductor and TiO 2 /SiO 2 waveguides, one Mach-Zehnder arm was covered with a sensor pad, the second arm with a phase modulator.
This phase modulator in the reference arm allows setting the operating point of the interferometer to the .