Discrete mode tuning in terahertz quantum cascade lasers.

  title={Discrete mode tuning in terahertz quantum cascade lasers.},
  author={Subhasish Chakraborty and Owen P Marshall and Chen Wei Hsin and Md Khairuzzaman and Harvey E. Beere and David A. Ritchie},
  journal={Optics express},
  volume={20 26},
A holographically designed, aperiodic distributed feedback grating is used as a multi-resonance filter and embedded within an existing Fabry-Pérot (FP) terahertz (THz) quantum cascade laser (QCL) cavity. Balancing the feedback strengths of the filter resonances and the FP cavity creates a system capable of a high degree of single-mode selectivity, which is sensitive to changes in driving current. Multi-moded QCLs operating around 2.9 THz are thus modified to achieve purely electronic discrete… CONTINUE READING

From This Paper

Figures, tables, results, connections, and topics extracted from this paper.
2 Extracted Citations
28 Extracted References
Similar Papers

Citing Papers

Publications influenced by this paper.

Referenced Papers

Publications referenced by this paper.
Showing 1-10 of 28 references

Longitudinal computer - generated holograms for digital frequency control in electronically tunable terahertz lasers

  • J. Whiteaway J. Carroll, D. Plumb
  • Appl . Phys . Lett .
  • 2012

Mode switching using weak aperiodic DFB gratings within FabryPérot lasers

  • C.-W. Hsin S. Chakraborty, O. Marshall, M. Khairuzzaman, H. Beere, D. Ritchie
  • 2012

Sampled grating , distributed feedback quantum cascade lasers with broad tunability and continuous operation at room temperature

  • N. Bandyopadhyay Slivken, S. Tsao, S. Nida, Y. Bai, Q. Y. Lu, M. Razeghi
  • Appl . Phys . Lett .
  • 2012

Dual wavelength emission from a terahertz quantum cascade laser

  • J. Madéo, A. Brewer, +6 authors D. A. Ritchie
  • Appl . Phys . Lett .
  • 2010

Widely tunable quantum cascade lasers with coupled cavities for gas detection

  • J. Seufert, J. Koeth, J. Semmel, S. Höfling, L. Worschech, A. Forchel
  • Appl . Phys . Lett .
  • 2010

Electrically tunable terahertz quantumcascade laser with a heterogeneous active region

  • M. Salih, P. Dean, A. G. Davies, E. H. Linfield
  • Appl . Phys . Lett .
  • 2009

Similar Papers

Loading similar papers…