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  • Oberhausen, WolfhardDepartment of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, Germany (author)

Phase-matching in terahertz quantum cascade laser sources based on Cherenkov difference-frequency mixing

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • AIP Publishing,2023
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-338075
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-338075URI
  • https://doi.org/10.1063/5.0162071DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20231013
  • Terahertz quantum cascade laser sources based on intra-cavity Cherenkov difference-frequency generation in dual-wavelength mid-infrared quantum cascade lasers are currently the only monolithic semiconductor laser technology that can deliver continuous-wave coherent terahertz output at room temperature. Because the Cherenkov difference-frequency generation process enables terahertz radiation generation and extraction across a wide range of frequencies, it is often assumed that phase-matching conditions for this process are automatically fulfilled. We theoretically analyze and experimentally demonstrate that phase-matching plays an important role in these devices, and significant improvements in terahertz power output can be achieved by adjusting the waveguide configuration of the quantum cascade lasers to provide better phase-matching.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Lubianskii, IaroslavDepartment of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, Germany (author)
  • Boehm, GerhardDepartment of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, Germany (author)
  • Strömberg, AxelKTH,Elektronik och inbyggda system(Swepub:kth)u16koivb (author)
  • Manavaimaran, BalajiKTH,Tillämpad fysik(Swepub:kth)u17x59d0 (author)
  • Burghart, DominikDepartment of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, Germany (author)
  • Sun, Yan-TingKTH,Fotonik(Swepub:kth)u126yqo4 (author)
  • Belkin, Mikhail A.Department of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, Germany (author)
  • Department of Electrical and Computer Engineering and Walter Schottky Institut, Technical University of Munich, 85748 Garching, GermanyElektronik och inbyggda system (creator_code:org_t)

Related titles

  • In:APL Photonics: AIP Publishing8:92378-0967

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