Volume 12 Issue 1, January 2018

Volume 12 Issue 1

Tuning surface phonon polaritons

Mid-infrared surface phonon polariton resonances in InP and 4H-SiC nanopillars are optically tuned by using green laser light to create photoinjected carriers. Photocarrier-induced blue-shifts of several cm−1 are observed. The ability to optically tune and modulate such resonances could be useful for realizing on-chip devices that operate in the mid-infrared.

See Dunkelberger et al.

Image: Chul Soo Kim, Chase T. Ellis, Joseph G. Tischler, US Naval Research Laboratory; Joshua D. Caldwell, Vanderbilt University. Cover Design: Bethany Vukomanovic

Books & Arts

Research Highlights

News & Views

  • News & Views |

    Excitation and gate tuning of terahertz plasmons in dual-layer graphene integrated into on-chip telecom photonic waveguides using infrared lasers has now been demonstrated. This may open the door to atomically thick optoelectronic devices for security, tomography or data processing.

    • Alexey Y. Nikitin
  • News & Views |

    A theoretical analysis of asymmetric dressed quantum dots in a photonic crystal cavity suggests that the system could form a new type of solid-state terahertz laser. However, an experimental realization will likely require advances in fabrication technology.

    • Simone De Liberato
  • News & Views |

    The science of superoscillations and the creation of local regions of light on a subwavelength scale is attracting attention for new forms of super-resolution microscopy and stiffer optical traps.

    • Oliver Graydon

Review Articles

  • Review Article |

    This Review covers key advancements in X-ray ptychographic microscopy and tomography over the past ten years. Potential applications in the life and materials sciences, the latest concepts and future developments are also discussed.

    • Franz Pfeiffer

Letters

  • Letter |

    A quantum memory based on a rubidium atom shows a record-long storage time of 100 ms with a readout efficiency of 22%. The photonic qubit is transferred between a basis with strong light–matter coupling and a basis with low decoherence.

    • M. Körber
    • , O. Morin
    • , S. Langenfeld
    • , A. Neuzner
    • , S. Ritter
    •  & G. Rempe
  • Letter |

    An all-optical difference frequency process is exploited to generate terahertz graphene plasmons that are tunable over an octave.

    • Baicheng Yao
    • , Yuan Liu
    • , Shu-Wei Huang
    • , Chanyeol Choi
    • , Zhenda Xie
    • , Jaime Flor Flores
    • , Yu Wu
    • , Mingbin Yu
    • , Dim-Lee Kwong
    • , Yu Huang
    • , Yunjiang Rao
    • , Xiangfeng Duan
    •  & Chee Wei Wong
  • Letter |

    Ferroelectric domains are optically reconfigured by a reversible process. The tuning is sufficient to enable macroscopically observable responses and the findings may help lead to the development of photo-stimulated ferroelectric devices.

    • Fernando Rubio-Marcos
    • , Diego A. Ochoa
    • , Adolfo Del Campo
    • , Miguel A. García
    • , Germán R. Castro
    • , José F. Fernández
    •  & José E. García

Articles

  • Article |

    Through a high-numerical-aperture multimode fibre, real-time manipulation of three-dimensional arrangements of micro-objects and manipulation inside inaccessible cavities are shown. The approach is useful for imaging deep inside living tissues and complex environments.

    • Ivo T. Leite
    • , Sergey Turtaev
    • , Xin Jiang
    • , Martin Šiler
    • , Alfred Cuschieri
    • , Philip St. J. Russell
    •  & Tomáš Čižmár
  • Article |

    A 10 Gb s–1 phase modulator based on a graphene-on-silicon Mach–Zehnder interferometer (MZI) is reported. The compact device has a phase-shifter length of only 300 μm and provides modulation of light at 1,550 nm with a 35 dB extinction ratio.

    • V. Sorianello
    • , M. Midrio
    • , G. Contestabile
    • , I. Asselberghs
    • , J. Van Campenhout
    • , C. Huyghebaert
    • , I. Goykhman
    • , A. K. Ott
    • , A. C. Ferrari
    •  & M. Romagnoli
  • Article |

    Frequency-resolved transient excited-state absorption of a single molecule is measured at room temperature. The dynamic Stokes shift and vibrational cooling are directly measured with 25 fs temporal resolution and a spectral detection bandwidth of hundreds of meV.

    • Matz Liebel
    • , Costanza Toninelli
    •  & Niek F. van Hulst
  • Article |

    Infrared surface phonon polariton tuning is achieved by photoinjecting free carriers into resonators.

    • Adam D. Dunkelberger
    • , Chase T. Ellis
    • , Daniel C. Ratchford
    • , Alexander J. Giles
    • , Mijin Kim
    • , Chul Soo Kim
    • , Bryan T. Spann
    • , Igor Vurgaftman
    • , Joseph G. Tischler
    • , James P. Long
    • , Orest J. Glembocki
    • , Jeffrey C. Owrutsky
    •  & Joshua D. Caldwell

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