M
Michael J. Robertson
Researcher at Suffolk University
Publications - 51
Citations - 898
Michael J. Robertson is an academic researcher from Suffolk University. The author has contributed to research in topics: Laser & Terahertz radiation. The author has an hindex of 18, co-authored 51 publications receiving 849 citations. Previous affiliations of Michael J. Robertson include Hitachi.
Papers
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Journal ArticleDOI
Traveling-wave Uni-Traveling Carrier Photodiodes for continuous wave THz generation
TL;DR: The design, experimental evaluation and performance of a Traveling-Wave Uni-Traveling Carrier photodiode for Terahertz generation are described and its advantages in terms of frequency response are demonstrated.
Journal ArticleDOI
Continuous Wave Terahertz Generation From Ultra-Fast InP-Based Photodiodes
TL;DR: In this article, the authors present theoretical analysis and experimental results for an optimized Traveling Wave Uni-Traveling Carrier Photodiode for continuous wave millimeter-wave and Terahertz generation.
Proceedings ArticleDOI
A high responsivity, broadband waveguide uni-travelling carrier photodiode
Cyril C. Renaud,Michael J. Robertson,D. C. Rogers,R. Firth,P. J. Cannard,R. Moore,Alwyn J. Seeds +6 more
TL;DR: In this article, a 2 A/W responsivity waveguide-uni-travelling carrier photodiode with a -3 dB electrical frequency response > 108 GHz is demonstrated.
Journal ArticleDOI
Terahertz emission from metal-organic chemical vapor deposition grown Fe:InGaAs using 830 nm to 1.55 μm excitation
Christopher D. Wood,O. Hatem,John Cunningham,Edmund H. Linfield,A. G. Davies,P. J. Cannard,Michael J. Robertson,D.G. Moodie +7 more
TL;DR: In this paper, the authors demonstrate the generation of broadband terahertz (THz) frequency radiation from photoconductive emitters formed from Fe-doped InGaAs (Fe:InGaAs), grown by metal-organic chemical vapor deposition, following pulsed (femtosecond) laser excitation at wavelengths ranging from 830 nm to 1.55μm.
Journal ArticleDOI
Hybrid Integrated Optical Phase-Lock Loops for Photonic Terahertz Sources
Robert Steed,Lalitha Ponnampalam,Martyn J. Fice,Cyril C. Renaud,D. C. Rogers,David G. Moodie,Graeme Maxwell,Ian Francis Lealman,Michael J. Robertson,L. Pavlovic,Luka Naglic,Matjaz Vidmar,Alwyn J. Seeds +12 more
TL;DR: In this paper, the first hybrid-integrated optical phase-lock loop (OPLL) for high spectral purity photonic terahertz sources was presented, which achieved the necessary short loop delay to lock a 1-MHz linewidth slave laser by hybrid integration of the slave laser and photodetector.