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Please use this identifier to cite or link to this item: http://hdl.handle.net/2307/317

Title: Terahertz intersubband absorption and conduction band alignment inn-type Si/SiGe multiple quantum wells
Authors: Ciasca, Gabriele
De Seta, Monica
Capellini, Giovanni
Evangelisti, Florestano
Ortolani, Michele
Virgilio, Michele
Grosso, Giuseppe
Nucara, Alessandro
Calvani, Paolo
Keywords: CASCADE EMITTERS
ON-INSULATOR
ELECTROLUMINESCENCE
HETEROSTRUCTURES
LINEWIDTH
DEVICES
LASER
GAAS
SI
Issue Date: 2009
Publisher: American phisical society
Abstract: Absorption due to conduction intersubband transitions is studied inn-type s-Si/SiGe multiquantum wells (MQW) of different well widths andbarrier composition grown by UHV-chemical vapor deposition (CVD). Themeasured intersubband transition energies are compared with thetheoretical results of a tight-binding model which provides theelectronic band structure of the complete MQW system throughout thewhole Brillouin zone. Our findings demonstrate both the high quality ofthe CVD grown MQWs and the eff
...more
URI: http://hdl.handle.net/2307/317
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.79.085302
Appears in Collections:A - Articolo su rivista
Dipartimento di Fisica 'Edoardo Amaldi'

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