Research output: Contribution to journal › Article › peer-review
Plasmon Enhancement of the Electric Field in Mid-Infrared Ge/Si Quantum-Dot Photodetectors with Different Thicknesses of the Active Region. / Bloshkin, A. A.; Yakimov, A. I.; Dvurechenskii, A. V.
In: Semiconductors, Vol. 53, No. 2, 01.02.2019, p. 195-199.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Plasmon Enhancement of the Electric Field in Mid-Infrared Ge/Si Quantum-Dot Photodetectors with Different Thicknesses of the Active Region
AU - Bloshkin, A. A.
AU - Yakimov, A. I.
AU - Dvurechenskii, A. V.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - Abstract: The spatial distribution of the electric field in Ge/Si photodetector heterostructures coated with a gold film containing a regular two-dimensional array of subwavelength apertures is calculated by the finite-element method. The array period and aperture diameter are 1.2 and 0.7 μm, respectively. The efficiency of field enhancement is determined for different thicknesses of the active region occupied by quantum dots. It is demonstrated that the field-enhancement factor for an electromagnetic wave incident on the structure from the side of the substrate is ~3.5 times larger than that for a wave incident from the opposite side. In the first case, the field-enhancement factor varies nonmonotonically with the thickness of the active region.
AB - Abstract: The spatial distribution of the electric field in Ge/Si photodetector heterostructures coated with a gold film containing a regular two-dimensional array of subwavelength apertures is calculated by the finite-element method. The array period and aperture diameter are 1.2 and 0.7 μm, respectively. The efficiency of field enhancement is determined for different thicknesses of the active region occupied by quantum dots. It is demonstrated that the field-enhancement factor for an electromagnetic wave incident on the structure from the side of the substrate is ~3.5 times larger than that for a wave incident from the opposite side. In the first case, the field-enhancement factor varies nonmonotonically with the thickness of the active region.
KW - NOISE
UR - http://www.scopus.com/inward/record.url?scp=85064935704&partnerID=8YFLogxK
U2 - 10.1134/S1063782619020039
DO - 10.1134/S1063782619020039
M3 - Article
AN - SCOPUS:85064935704
VL - 53
SP - 195
EP - 199
JO - Semiconductors
JF - Semiconductors
SN - 1063-7826
IS - 2
ER -
ID: 20050225