Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CC_P_14

Beam Cleaning in Terahertz Quantum Cascade Lasers by Coupling to Flexible Polystyrene\Silver Coated Hollow Waveguides

Not Accessible

Your library or personal account may give you access

Abstract

The terahertz (THz) quantum cascade laser (QCL) [1] possesses great potential in a whole host of applications including spectroscopy, imaging, astrophysics and sensing, in a frequency range that has been traditionally challenging to explore. QCLs are both compact and robust, exhibiting high power emission with a frequency and bandwidth which can be tailored by suitable design. In particular, the double metal (MM) QCL waveguide has proven superior temperature performance compared to the single plasmon waveguide, and as such lends itself to use within experimental architectures designed with real-world applications in mind. However, the primary drawback of the MM waveguide is the highly divergent, multi-lobed emission pattern, which results from the high degree of sub-wavelength mode confinement. This in turn limits device applicability where beam quality is of primary concern, as well as limiting power delivery over even moderate distances (10s mm), and as such is a major barrier to be overcome in the drive towards practical applications.

© 2015 IEEE

PDF Article
More Like This
A Hybrid Plasmonic Waveguide Terahertz Quantum Cascade Laser

R. Degl’Innocenti, A. Klimont, Y. D. Shah, R. Wallis, Y. Ren, D. S. Jessop, H. E. Beere, and D. A. Ritchie
CC_2_5 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015

A hybrid plasmonic waveguide terahertz quantum cascade laser

R. Degl’Innocenti, Y. D. Shah, R. Wallis, A. Klimont, Y. Ren, D. S. Jessop, H. E. Beere, and D. A. Ritchie
SM1H.7 CLEO: Science and Innovations (CLEO:S&I) 2015

High Gain Terahertz Quantum Cascade Amplifier

R. Wallis, Y. Ren, Y. D. Shah, D. S. Jessop, R. Degl’Innocenti, A. Klimont, V. Kamboj, H. E. Beere, and D. A. Ritchie
CC_2_3 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved