Optical properties and devices articles within Nature Physics

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• Article | 07 February 2022

  Cyclotron resonance overtones and near-field magnetoabsorption via terahertz Bernstein modes in graphene

  Electrons in an external magnetic field absorb electromagnetic radiation via cyclotron resonance. Deviations from this behaviour in the form of overtone resonances due to ultraslow magnetoplasmonic excitations are now reported for graphene.

  • D. A. Bandurin
  • , E. Mönch
  •  & S. D. Ganichev

• Article | 27 September 2021

  Observation of interband collective excitations in twisted bilayer graphene

  Moiré potentials substantially alter the electronic properties of twisted bilayer graphene at a magic twist angle. A propagating plasmon mode, which can be observed with optical nano-imaging, is associated with transitions between the moiré minibands.

  • Niels C. H. Hesp
  • , Iacopo Torre
  •  & Frank H. L. Koppens

• Research Highlight | 03 September 2020

  Photonic crystal maze

  • Nina Meinzer

• Letter | 31 October 2016

  Fermi polaron-polaritons in charge-tunable atomically thin semiconductors

  Cavity spectroscopy measurements elucidate the Fermi polaron nature of the optical excitations in monolayer transition metal dichalcogenides.

  • Meinrad Sidler
  • , Patrick Back
  •  & Atac Imamoglu

• Letter | 24 October 2016

  Interlayer electron–phonon coupling in WSe₂/hBN heterostructures

  The emergence of optically silent phonons show that strong interlayer electron–phonon coupling can arise in van der Waals heterostructures, with the vibrational modes in one layer coupling to the electronic states in a neighbouring layer.

  • Chenhao Jin
  • , Jonghwan Kim
  •  & Feng Wang

• Article | 19 January 2015

  Electrical control of optical emitter relaxation pathways enabled by graphene

  The relaxation processes of light-emitting excited ions are tunable, but electrical control is challenging. It is now shown that graphene can be used to manipulate the optical emission and relaxation of erbium near-infrared emitters electrically.

  • K. J. Tielrooij
  • , L. Orona
  •  & F. H. L. Koppens

• Letter | 31 August 2014

  Gate-dependent pseudospin mixing in graphene/boron nitride moiré superlattices

  Electrons in graphene have a pseudospin, but controlling this degree of freedom is challenging. Evidence now suggests that the moiré superlattices arising in two-dimensional heterostructures can be used to electrically manipulate pseudospins.

  • Zhiwen Shi
  • , Chenhao Jin
  •  & Feng Wang

• News & Views | 01 July 2013

  Optical time reversal with graphene

  Would you ever guess that a microscopic flake of graphite could reverse the diffraction of light? An experiment that demonstrates just such an effect highlights the exciting optical applications of graphene — an atomic layer of carbon with a two-dimensional honeycomb lattice.

  • Yaroslav Urzhumov
  • , Cristian Ciracì
  •  & David R. Smith

• News & Views | 01 August 2012

  All eyes on flatland

  Graphene could offer an efficient and controllable interface between nanoscale optics and electronics, and promises a new generation of optoelectronic devices.

  • Stefan A. Maier