Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Dawn K. Gifford"'
Publikováno v:
IEEE Sensors Journal. 12:55-63
Simple, circular loops in a single optical fiber bonded to a metal test sample are used to form multiple strain gauge rosettes. Strain measurements are made using an optical backscatter reflectometer to detect changes in the phase of the Rayleigh Sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdaec7a17fadca0db910bb38c79ffba5
https://doi.org/10.1109/jsen.2011.2119477
https://doi.org/10.1109/jsen.2011.2119477
Publikováno v:
IEEE Sensors Journal. 8:1375-1380
We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a Nuclear Reactor. The sensors consisted of 2 m segments of commercially available, single mode optical fibers. The interrogation technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c49f854c84be0ed03c09379144bc1d4
https://doi.org/10.1109/jsen.2008.927247
https://doi.org/10.1109/jsen.2008.927247
Autor:
Mark E. Froggatt, Dawn K. Gifford
Publikováno v:
Frontiers in Optics 2013.
High resolution measurements of the Rayleigh scatter of optical fiber enable recording of a fiber’s unique “fingerprint.” Detecting changes in this signature can be useful in a variety of safety and security applications discussed herein.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a438e1facdd608952bb01a0d041f07e
https://doi.org/10.1364/fio.2013.fw4i.2
https://doi.org/10.1364/fio.2013.fw4i.2
Autor:
Dawn K. Gifford, Dennis G. Hall
Publikováno v:
Applied Physics Letters. 81:4315-4317
We report strong surface emission from an organic light-emitting diode in which the luminescent material resides between two nearly opaque metal electrodes. Experimental and theoretical analyses indicate that cross coupling between surface plasmons o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7a32d6ca351da547fb902e44c3835f
https://doi.org/10.1063/1.1525882
https://doi.org/10.1063/1.1525882
Autor:
Dawn K. Gifford, Dennis G. Hall
Publikováno v:
Applied Physics Letters. 80:3679-3681
We report extraordinary transmission of organic photoluminescence through an otherwise opaque, thin metal layer. We observe strong, angularly dependent photoluminescence from silver-coated films of Alq3 deposited on a corrugated substrate. Experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98398d77925df3517dfad3512fcde811
https://doi.org/10.1063/1.1478776
https://doi.org/10.1063/1.1478776
Publikováno v:
2011 IEEE Avionics, Fiber- Optics and Photonics Technology Conference.
Commercially available OFDR technology provides high-resolution distributed strain measurements using standard optical fiber. These measurements are shown to correlate well with other standard measurement methods and theoretical models of simple stru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa9b3b18164e23b9bd01815a5219f29e
https://doi.org/10.1109/avfop.2011.6082120
https://doi.org/10.1109/avfop.2011.6082120
Publikováno v:
2011 IEEE Avionics, Fiber- Optics and Photonics Technology Conference.
With millimeter spatial resolution, 500 meter maximum device length, −130 dB sensitivity and near-zero dead-zone, the portable OBR provides precise location and quantification of links faults. Further, when combined with novel, low-loss mode condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8569fe1ff940fdd516033166e732317d
https://doi.org/10.1109/avfop.2011.6082131
https://doi.org/10.1109/avfop.2011.6082131
Publikováno v:
SPIE Proceedings.
We describe the use of swept wavelength interferometry for millimeter resolution dynamic fiber optic strain measurements on a cyclically loaded aluminum coupon using single mode fiber. The interrogation method is based on measuring the phase along th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64186ecd671976f36e9154d80855057e
https://doi.org/10.1117/12.885946
https://doi.org/10.1117/12.885946
Publikováno v:
SPIE Proceedings.
Optical Frequency Domain Reflectometry is used to measure distributed displacement and temperature change with very high sensitivity and precision by measuring the phase change of an optical fiber sensor as a function of distance with high spatial re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80008f1422c25cf7bd1a1081bd7cb525
https://doi.org/10.1117/12.885131
https://doi.org/10.1117/12.885131
Publikováno v:
Imaging and Applied Optics.
The shape of a fused silica fiber having four guiding cores that are configured in a helix is reconstructed using a measurement of the phase shift in the Rayleigh scatter patterns of the four cores.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a171f1fadad52ad16c006fe06a4a235f
https://doi.org/10.1364/aio.2011.aimb2
https://doi.org/10.1364/aio.2011.aimb2