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Proceedings Paper

THz quantum cascade lasers based on a hyperuniform design
Author(s): R. Degl'Innocenti; Y. D. Shah; L. Masini; A. Ronzani; A. Pitanti; Y. Ren; D. S. Jessop; A. Tredicucci; H. E. Beere; D. A. Ritchie
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Paper Abstract

A terahertz quantum cascade laser has been realized from an isotropic disordered hyperuniform design. Such a system presents a photonic band-gap although it is characterized by an efficient depletion of the long range order. Hyperuniform patterns allow greater versatility in engineering band gaps in comparison to standard photonic-crystal materials. Bidimensional hyperuniform patterns were simulated for hexagonal tiles composed of high refractive index disks merged in a low dielectric constant polymeric matrix. Based on this design, quantum cascade lasers were fabricated by standard photolithography, metal evaporation, lift-off and dry-etching techniques in a half-stack bound to continuum active region emitting around 2.9 THz.

Paper Details

Date Published: 8 February 2015
PDF: 6 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 93700A (8 February 2015); doi: 10.1117/12.2083678
Show Author Affiliations
R. Degl'Innocenti, Univ. of Cambridge (United Kingdom)
Y. D. Shah, Univ. of Cambridge (United Kingdom)
L. Masini, NEST, Istituto Nanoscienze, CNR, Scuola Normale Superiore (Italy)
A. Ronzani, NEST, Istituto Nanoscienze, CNR, Scuola Normale Superiore (Italy)
A. Pitanti, NEST, Istituto Nanoscienze, CNR, Scuola Normale Superiore (Italy)
Y. Ren, Univ. of Cambridge (United Kingdom)
D. S. Jessop, Univ. of Cambridge (United Kingdom)
A. Tredicucci, Univ. di Pisa (Italy)
H. E. Beere, Univ. of Cambridge (United Kingdom)
D. A. Ritchie, Univ. of Cambridge (United Kingdom)


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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