Paper
8 February 2015 THz quantum cascade lasers based on a hyperuniform design
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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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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Degl'Innocenti, Y. D. Shah, L. Masini, A. Ronzani, A. Pitanti, Y. Ren, D. S. Jessop, A. Tredicucci, H. E. Beere, and D. A. Ritchie "THz quantum cascade lasers based on a hyperuniform design", Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 93700A (8 February 2015); https://doi.org/10.1117/12.2083678
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Cited by 13 scholarly publications.
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KEYWORDS
Terahertz radiation

Quantum cascade lasers

Metals

Reactive ion etching

Etching

Dielectrics

Refractive index

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