THz quantum cascade lasers based on a hyperuniform design

Degl'Innocenti, R., Shah, Y.D. , Masini, L., Ronzani, A., Pitanti, A., Ren, Y., Jessop, D.S., Tredicucci, A., Beere, H.E. and Ritchie, D.A. (2015) THz quantum cascade lasers based on a hyperuniform design. Proceedings of the SPIE: The International Society for Optical Engineering, 9370, 93700A. (doi: 10.1117/12.2083678)

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.

• Item Type: Articles
• Additional Information: Invited paper.; Quantum Sensing and Nanophotonic Devices XII
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Shah, Dr Yash Diptesh
• Authors: Degl'Innocenti, R., Shah, Y.D., Masini, L., Ronzani, A., Pitanti, A., Ren, Y., Jessop, D.S., Tredicucci, A., Beere, H.E., and Ritchie, D.A.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Proceedings of the SPIE: The International Society for Optical Engineering
• Publisher: Society of Photo-optical Instrumentation Engineers
• ISSN: 0277-786X
• ISSN (Online): 1996-756X
• Published Online: 08 February 2015