[14p-K504-1~13] 3.8 Terahertz technologies

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[14p-K504-7] Landau-level terahertz emission in graphene

〇Fumiyuki Inamura¹, Sunmi Kim², Iwao Hosako², Mikhail Patrashin³, Susumu Komiyama⁴, Kenji Ikushima¹ (1.Tokyo Univ. A & T, 2.NICT, 3.Univ. Adelaide, 4.Univ. of Tokyo)

Keywords:

Landau levels,Quantum Hall effect,Terahertz emission

In graphene, linear band dispersion splits into unequally spaced Landau-levels (LLs) under a high magnetic field. Consequently, graphene has attracted attention as a promising material for realizing LL lasers.
Here, we provide experimental evidence for the occurrence of inter-LL radiative transitions in an electrically biased graphene Hall bar, where the wavelength of emission can be tuned by varying the applied magnetic field.