Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ansas M. Kasten"'
Publikováno v:
IEEE Sensors Journal. 21:6287-6292
A technique is described for measurement of the flow and diffusion rates of trace gases in atmosphere into and out of hollow core fiber (HCF) using tunable diode laser absorption spectroscopy (TDLAS). Both diffusion and pressure-induced flow for meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a20a072bfaa158a7d43200ae147e3fe9
https://doi.org/10.1109/jsen.2020.3042345
https://doi.org/10.1109/jsen.2020.3042345
Autor:
Thaddeus Czauski, Ansas M. Kasten, Renato Guida, Sachin Narahari Dekate, Russell Craddock, Roger Jones, William Albert Challener, S. M. Hasan, Reza Ghandi, Dimitri Dylov
Publikováno v:
MRS Advances. 1:1501-1512
A highly accurate multi-point pressure measurement system based on MEMS pressure sensors spliced into a fiber optic cable and suitable for downhole deployment in a CO2 sequestration well was designed, developed and tested in the laboratory. An interr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e87123a90644581deaa822b6c2a200
https://doi.org/10.1557/adv.2016.119
https://doi.org/10.1557/adv.2016.119
Autor:
John Scott Price, Sergei Ivanovich Dolinsky, Sarah Katz, Edward James Nieters, Ansas M. Kasten, Adrian Ivan, Frederick Wilson Wheeler, Aaron Krites, William Robert Ross, Brian Jurczyk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::228ff12c1e39a3611d1dba385f630afb
https://doi.org/10.2172/1375716
https://doi.org/10.2172/1375716
Autor:
Todd Frederick Miller, Ansas M. Kasten, William Albert Challener, Yizhen Lin, Sergey Alexandrovich Zotov, Loucas Tsakalakos, Mengli Wang
Publikováno v:
2017 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL).
We report on the development of an optical self-excitation and detection method to allow for high stability operation of inertial MEMS sensors. A single constant amplitude laser beam is used to both drive and optically interrogate the resonant freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df5752453427a3ec6d25e536a29ceb8c
https://doi.org/10.1109/isiss.2017.7935677
https://doi.org/10.1109/isiss.2017.7935677
Autor:
Paul O. Leisher, Ansas M. Kasten, James J. Raftery, Aaron J. Danner, Dominic F. Siriani, Meng Peun Tan, Kent D. Choquette, J.D. Sulkin
Publikováno v:
Advances in Optical Technologies. 2012:1-8
We review the design, fabrication, and performance of photonic crystal vertical cavity surface emitting lasers (VCSELs). Using a periodic pattern of etched holes in the top facet of the VCSEL, the optical cavity can be designed to support the fundame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89d3e6615369cd8f420571a156a94dfe
https://doi.org/10.1155/2012/280920
https://doi.org/10.1155/2012/280920
Publikováno v:
IEEE Journal of Quantum Electronics. 48:160-168
A thin layer of palladium (Pd) was deposited on the surface of an etched air hole photonic crystal (PhC) vertical cavity surface emitting laser (VCSEL) to form a hydrogen gas (H2) sensor. H2 reacts with Pd, forming PdHx, which induces a shift in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dcc1b8d886e98e021d4659bfd961020
https://doi.org/10.1109/jqe.2011.2171918
https://doi.org/10.1109/jqe.2011.2171918
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 17:1648-1655
We investigate the optical properties of proton-implanted photonic crystal (PhC) vertical-cavity surface-emitting lasers (VCSELs) emitting in the visible spectrum. The fabricated lasers have a threshold current of 1.3 mA and single-mode output power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8f6667eb69c4c12682cb97d25e82c0
https://doi.org/10.1109/jstqe.2011.2125780
https://doi.org/10.1109/jstqe.2011.2125780
Autor:
Kent D. Choquette, Antonios V. Giannopoulos, A. C. L. Harren, Meng Peun Tan, Ansas M. Kasten, J.D. Sulkin, Aaron J. Danner, James J. Raftery, Dominic F. Siriani, Paul O. Leisher
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 15:909-917
We demonstrate transverse mode control in vertical-cavity surface-emitting lasers (VCSELs) and 2-D VCSEL arrays. By etching a periodic arrangement of circular holes into the top distributed Bragg reflector mirror, we are able to control the lasing mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebff707a00b17f3b6828c297d15d2e49
https://doi.org/10.1109/jstqe.2008.2012121
https://doi.org/10.1109/jstqe.2008.2012121
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 14:1123-1131
We describe a robust manufacturing process for single-mode photonic crystal (PhC) vertical-cavity surface-emitting lasers (VCSELs). Various PhC designs are investigated to determine endlessly single-mode designs, whereby the same PhC design yields si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe7de98ae75e5aba63e91cdb04ab8ab4
https://doi.org/10.1109/jstqe.2008.922912
https://doi.org/10.1109/jstqe.2008.922912
Publikováno v:
IEEE Photonics Technology Letters. 24:745-747
Vertical-cavity surface-emitting lasers with anisotropic cavity geometry and current injection capable of bias-dependent polarization switching are demonstrated. A cruciform-shaped photonic crystal defect and ion-implanted aperture defines the transv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8952720be47a7fe1a5e7b58592a95bc0
https://doi.org/10.1109/lpt.2012.2187638
https://doi.org/10.1109/lpt.2012.2187638