
Proceedings Paper
Enhanced two-photon-absorption using sub-wavelength antennasFormat | Member Price | Non-Member Price |
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Paper Abstract
Degenerate two-photon absorption (TPA) is investigated in a 186 nm thick gallium arsenide (GaAs) p-i-n diode
embedded in a resonant metallic nanostructure. The full device consists in the GaAs layer, a gold subwavelength grating
on the illuminated side, and a gold mirror on the opposite side. For TM-polarized light, the structure exhibits a resonance
close to 1.47 μm, with a confined electric field in the intrinsic region, far from the metallic interfaces. A 109 times
increase in photocurrent compared to a non-resonant device is obtained experimentally, while numerical simulations
suggest that both gain in TPA-photocurrent and angular dependence can be further improved. For optimized grating
parameters, a maximum gain of 241 is demonstrated numerically and over incidence angle range of (−30°; +30°). This
structure paves the way towards low-noise infrared detection, using non-degenerate TPA, involving two photons of
vastly different energies in the same process of absorption in a large bandgap semiconductor material.
Paper Details
Date Published: 8 February 2015
PDF: 7 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 937018 (8 February 2015); doi: 10.1117/12.2075527
Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)
PDF: 7 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 937018 (8 February 2015); doi: 10.1117/12.2075527
Show Author Affiliations
B. Vest, ONERA (France)
B. Portier, Lab. de Photonique et de Nanostructures, CNRS (France)
F. Pardo, Lab. de Photonique et de Nanostructures, CNRS (France)
N. Péré-Laperne, Lab. de Photonique et de Nanostructures, CNRS (France)
E. Steveler, Lab. de Photonique et de Nanostructures, CNRS (France)
J. Jaeck, ONERA (France)
B. Portier, Lab. de Photonique et de Nanostructures, CNRS (France)
F. Pardo, Lab. de Photonique et de Nanostructures, CNRS (France)
N. Péré-Laperne, Lab. de Photonique et de Nanostructures, CNRS (France)
E. Steveler, Lab. de Photonique et de Nanostructures, CNRS (France)
J. Jaeck, ONERA (France)
C. Dupuis, Lab. de Photonique et de Nanostructures, CNRS (France)
N. Bardou, Lab. de Photonique et de Nanostructures, CNRS (France)
A. Lemaître, Lab. de Photonique et de Nanostructures, CNRS (France)
E. Rosencher, ONERA (France)
R. Haïdar, ONERA (France)
J.-L. Pelouard, Lab. de Photonique et de Nanostructures, CNRS (France)
N. Bardou, Lab. de Photonique et de Nanostructures, CNRS (France)
A. Lemaître, Lab. de Photonique et de Nanostructures, CNRS (France)
E. Rosencher, ONERA (France)
R. Haïdar, ONERA (France)
J.-L. Pelouard, Lab. de Photonique et de Nanostructures, CNRS (France)
Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)
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