Zobrazeno 1 - 10 of 16 pro vyhledávání: '"S. J. Sweeney"'
1
Akademický článek
Challenges for room temperature operation of electrically pumped GeSn lasers
Autor: A. R. Ellis, D. A. Duffy, I. P. Marko, S. Acharya, W. Du, S. Q-. Yu, S. J. Sweeney
Publikováno v: Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Recent demonstrations of room-temperature lasing in optically pumped GeSn show promise for future CMOS compatible lasers for Si-photonics applications. However, challenges remain for electrically pumped devices. Investigation of the processe
Externí odkaz: https://doaj.org/article/b8f7fd74728f4d6ea879e34f759f1d8c
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2
Carrier density non-pinning at stripe edges and widened lateral far field due to longitudinal temperature variation in broad-area high power diode lasers
Autor: S. K. Khamari, S. Arslan, C. Zink, S. J. Sweeney, P. Crump
Publikováno v: Applied Physics Letters. 122
Broad area lasers operating at high power with improved beam quality are needed in many applications. In typical high-power diode lasers with asymmetric facet coating, it is observed that the carrier density fails to completely pin above threshold wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::469f07baa7b2d97ac2e382c1c403fe13
https://doi.org/10.1063/5.0149986
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4
Dilute bismide / dilute nitride type ii quantum wells: Novel strain-balanced heterostructures for GaAs-based near- and mid-infrared photonics
Autor: K. Hind, Kerstin Volz, Zoe L. Bushell, Wolfgang Stolz, P. Ludewig, Eoin P. O'Reilly, S. R. Jin, S. J. Sweeney, Christopher A. Broderick, Judy M Rorison, Igor P. Marko
Publikováno v: ICTON
We demonstrate a new class of GaAs-based type II quantum wells based on the highly mis-matched III–V semiconductor alloys GaAs 1-x Bi x and GaNyAs 1-y . We theoretically quantify and analyse the available design space for the growth of GaAs 1-x Bi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d00e47555380d6155653a0cbb03fcb3
https://doi.org/10.1109/icton.2017.8024779
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6
Measurement of absolute transition dipole moment functions of the 3 (1)Pi --1(X) (1)Sigma+ and 3 (1)Pi --2(A) (1)Sigma+ transitions in NaK using Autler-Townes spectroscopy and calibrated fluorescence
Autor: S J, Sweeney, E H, Ahmed, P, Qi, T, Kirova, A M, Lyyra, J, Huennekens
Publikováno v: The Journal of chemical physics. 129(15)
We describe a two-laser experiment using optical-optical double resonance fluorescence and Autler-Townes (AT) splittings to determine the NaK 3 (1)Pi--1(X)(1)Sigma(+), 2(A)(1)Sigma(+) absolute transition dipole moment functions. Resolved 3 (1)Pi--A (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7fc3102834d309fdc5d623a74afd56cb
https://pubmed.ncbi.nlm.nih.gov/19045189
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7
Measurement of absolute transition dipole moment functions of the 3 Π1→1(X)Σ1+ and 3 Π1→2(A)Σ1+ transitions in NaK using Autler–Townes spectroscopy and calibrated fluorescence
Autor: Ergin Ahmed, John Huennekens, A. M. Lyyra, S. J. Sweeney, P. Qi, Teodora Kirova
Publikováno v: The Journal of Chemical Physics. 129:154303
We describe a two-laser experiment using optical-optical double resonance fluorescence and Autler-Townes (AT) splittings to determine the NaK 3 (1)Pi-->1(X)(1)Sigma(+), 2(A)(1)Sigma(+) absolute transition dipole moment functions. Resolved 3 (1)Pi-->A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7934e9f78ed61c0d029f230ce6b3744
https://doi.org/10.1063/1.2982780
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8
Population Characteristics of Bobcats in Washington State
Autor: S. J. Sweeney, S. T. Knick, J. D. Brittell
Publikováno v: The Journal of Wildlife Management. 49:721
Age structures, sex ratios, and reproductive status of two bobcat (Felis rufus) populations in Washington state were determined by examination of 1,238 bobcat carcasses. Carcasses were collected between October and March from hunters and trappers fro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b535e1291b8ae90f72aa5b80abf13b9b
https://doi.org/10.2307/3801701
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9
Akademický článek
Unfolding the band structure of GaAsBi.
Autor: R Maspero, S J Sweeney, Marian Florescu
Publikováno v: Journal of Physics: Condensed Matter; 2/22/2017, Vol. 29 Issue 7, p1-1, 1p
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10
Akademický článek
Experimental and modelling study of InGaBiAs/InP alloys with up to 5.8% Bi, and with Δso > Eg.
Autor: Grace M T Chai, C A Broderick, E P O’Reilly, Z Othaman, S R Jin, J P Petropoulos, Y Zhong, P B Dongmo, J M O Zide, S J Sweeney, T J C Hosea
Publikováno v: Semiconductor Science & Technology; Sep2015, Vol. 30 Issue 9, p1-1, 1p
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