Microcavity Terahertz Spin-Flip Laser Proposal

Robert I. Shekhter, Anatoly M. Kadigrobov, Mats Jonson, Elena I. Smotrova, Alexander I. Nosich, Vlad Korenivski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a novel design for a single-mode, truly sub-wavelength THz disk laser based on a nano-composite gain medium comprising an array of metal or ferromagnetic point contacts embedded in a thin dielectric layer. Stimulated emission of light occurs due to spin-flip relaxation of spin-polarized electrons injected from the ferromagnetic side of the contacts. Ultra-high electrical current densities in the contacts and a dielectric material with a large refractive index, neither condition being achievable in conventional semiconductor media, allows the thresholds of lasing to be overcome for the lowest-order modes of the disk, hence making single-mode operation possible.

Original languageEnglish
Title of host publication2011 13TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON)
EditorsM Jaworski, M Marciniak
Place of PublicationNEW YORK
PublisherIEEE
Pages-
Number of pages3
ISBN (Print)978-1-4577-0880-0
DOIs
Publication statusPublished - 2011
Event13th International Conference on Transparent Optical Networks - Stockholm, Sweden
Duration: 26 Jun 201130 Jun 2011

Conference

Conference13th International Conference on Transparent Optical Networks
Abbreviated titleICTON 2011
CountrySweden
CityStockholm
Period26/06/1130/06/11

Keywords

  • spin-flip
  • magnetic point contact
  • disk laser
  • sub-wavelength microcavity
  • terahertz waves

Cite this

Shekhter, R. I., Kadigrobov, A. M., Jonson, M., Smotrova, E. I., Nosich, A. I., & Korenivski, V. (2011). Microcavity Terahertz Spin-Flip Laser Proposal. In M. Jaworski, & M. Marciniak (Eds.), 2011 13TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) (pp. -). IEEE. https://doi.org/10.1109/ICTON.2011.5970968