Zobrazeno 1 - 10
of 23
pro vyhledávání: '"M. Bordovsky"'
Publikováno v:
Scopus-Elsevier
This paper presents a theoretical analysis and experimental verification of electro-optic sensors used to measure DC electric fields in space charge environments. Both unipolar and bipolar charge environments were analyzed. The results suggest that i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87ec777c32063e7f77f7b56f16408570
https://doi.org/10.1109/19.997825
https://doi.org/10.1109/19.997825
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 50:465-469
The paper presents a theoretical analysis and experimental verification of a lithium niobate electrooptic sensor for measurement of DC electric fields in a space charge environment. Both unipolar and bipolar charge environments were investigated. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f973a5f36d2815951ea01a9aeeb2ce67
https://doi.org/10.1109/19.918167
https://doi.org/10.1109/19.918167
Autor:
Roger P. Griffiths, Christine Mignosi, C. N. Morgan, I. H. White, Nicholas A J Lieven, M. Bordovsky
Publikováno v:
Fiber and Integrated Optics. 20:71-81
A novel low cost, non-contact optical vibration sensor requiring only a single optoelectronic component has been developed. It consists of a continuous wave semiconductor laser operating with external optical feedback. Vibrations have been measured a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33dcba776b29b79beaebc2898f317426
https://doi.org/10.1080/01468030121192
https://doi.org/10.1080/01468030121192
Autor:
C Marinelli, T. Takeuchi, Mohamed Benyoucef, Richard P. Schneider, Richard V. Penty, L.J. Sargent, Mhh Kuball, Ian H. White, Peter J Heard, Ghulam Hasnain, Judy M Rorison, Mariangela Gioannini, M Bordovsky
Publikováno v:
Applied Physics Letters. 79:4076-4078
The key parameters in the fabrication of deep-etch high-order λ/4 Bragg gratings for short-wavelength nitride-based lasers are investigated. Calculations indicate that, for an air-gap thickness of 1.73 μm and single-spot Gaussian beam profile, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2edf550090231f021e49179975c1d9f6
https://doi.org/10.1063/1.1424061
https://doi.org/10.1063/1.1424061
Publikováno v:
World Tribology Congress III, Volume 1.
Reliability and durability of pipeline tubes are mainly affected by repeated alternative pressure, the processes of corrosion and erosion. These phenomena cause degradation of material on the internal surface of the tube. However the traditional meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5016a7d72e30f782895b882c2b1f3000
https://doi.org/10.1115/wtc2005-63111
https://doi.org/10.1115/wtc2005-63111
Publikováno v:
Scopus-Elsevier
Performance of bismuth germanate and lithium niobate crystals in an extra-low-frequency (ELF) and DC electrooptic sensor was investigated experimentally. Unwanted effects of conductivity, photoconductivity and stimulated conductivity of the crystals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44f92f5c60c0d1062928bbaad1390acd
https://doi.org/10.1109/cpem.1998.700069
https://doi.org/10.1109/cpem.1998.700069
Publikováno v:
Scopus-Elsevier
We present a novel electric field measurement system utilising optical technology, which has been developed, tested and calibrated for near field measurement in the frequency region up to 1.8 GHz. The measuring probe is passive, all-dielectric and EM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2907b09d44d57a87c91588647f96f82
https://doi.org/10.1109/cpem.1998.700131
https://doi.org/10.1109/cpem.1998.700131
Design and fabrication of air/semiconductor Bragg gratings for short wavelength nitride-based lasers
Autor:
Adrian Wonfor, Richard P. Schneider, Mohamed Benyoucef, Peter J Heard, Ghulam Hasnain, Richard V. Penty, Judy M Rorison, Ian H. White, C Marinelli, L.J. Sargent, Martin Kuball, M Bordovsky
Publikováno v:
Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170).
Summary form only given. Blue/ultraviolet emitting diode lasers, based on nitride compounds, are suitable for spectroscopy, gas analysis, optical data storage, laser printing and scanning. Many of these applications require low-threshold devices with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a3dd5ade7cec1d4176246aa98173c02
https://doi.org/10.1109/cleo.2001.947500
https://doi.org/10.1109/cleo.2001.947500
Publikováno v:
SPIE Proceedings.
We present the requirements and analysis of measurements of high frequency low intensity electromagnetic fields with particular focus on field perturbation by the measuring probe and the measurements in the near field region. To this end novel electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d4a2767f4c0934fd1899bea76d041be
https://doi.org/10.1117/12.276148
https://doi.org/10.1117/12.276148
Publikováno v:
Fiber Optic and Laser Sensors XIV.
An electric field sensor based on the linear electro-optic effect is described and the performances of available electro-optic cubic crystals are compared. The sensor sensitivity to an electric field is characterized by a new figure of merit evaluate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4864cbf1118cb77651f2d93968b694f7
https://doi.org/10.1117/12.255348
https://doi.org/10.1117/12.255348