Biological sciences articles within Nature Photonics

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  • Letter |

    Nonlinear optics can overcome the diffraction limit through the presence and interaction of many photons. Abbe's diffraction theory is now generalized to include spatial nonlinearity, and wave mixing is treated as a self-induced structured illumination, thereby allowing a standard imaging system to be nonlinearly enhanced beyond its conventional limits.

    • Christopher Barsi
    •  & Jason W. Fleischer

  • Letter |

    A highly efficient method is demonstrated for detecting individual photons scattering from short-lived transitions in single trapped ions. An entangled state is used to amplify the tiny momentum kick an ion receives on scattering a photon. Cat-state spectroscopy has an 18-fold higher measurement sensitivity than the direct detection method.

    • C. Hempel
    • , B. P. Lanyon
    •  & C. F. Roos

  • News & Views |

    Using a pump–probe technique, scientists have experimentally demonstrated a nonlinear imaging scheme that permits the super-resolution imaging of nonfluorescent samples, making it promising for use with unstained specimens.

    • Rainer Heintzmann

  • Article |

    Researchers demonstrate, in both normal and degenerate rat retinas, a photovoltaic subretinal prosthesis in which the silicon photodiodes in each pixel receive power and data through pulsed near-infrared illumination.

    • Keith Mathieson
    • , James Loudin
    •  & Daniel Palanker

  • Research Highlights |

    • James Baxter

  • Letter |

    It is well-known that neutral atoms can be trapped using visible light, but the trapping of ions is typically achieved using radiofrequency electromagnetic fields. Researchers have now developed an optical ion trapping technique that may be useful for applications ranging from quantum physics to ultracold chemistry.

    • Ch. Schneider
    • , M. Enderlein
    •  & T. Schaetz

  • News & Views |

    The aberrations induced by strongly scattering and turbid samples make optical trapping in such media impossible. Now, researchers in Scotland have overcome the problem using in situ aberration correction.

    • Estela Martín-Badosa

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