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Journal ArticleDOI

Diamond colour centres as a nanoscopic light source for scanning near-field optical microscopy.

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TLDR
The first SNOM images taken with nanoscopic diamond crystals as a light source are presented, found to be remarkably stable against bleaching and blinking effects.
Abstract
Recently it was shown that a single molecule at cryogenic temperatures could be used as a local light source for illumination of a sample in the near field. Conventional light-emitting systems such as dye molecules and semiconductor quantum dots could also be used for this purpose, but they suffer from lack of photostability. However, colour centres in diamond have been found to be remarkably stable against bleaching and blinking effects. Here we present the first SNOM images taken with nanoscopic diamond crystals as a light source.

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Journal ArticleDOI

Nanoscale imaging magnetometry with diamond spins under ambient conditions

TL;DR: This work shows how magneto-optical spin detection can be used to determine the location of a spin associated with a single nitrogen-vacancy centre in diamond with nanometre resolution under ambient conditions, and demonstrates the use of a single diamond spin as a scanning probe magnetometer to map nanoscale magnetic field variations.
Journal ArticleDOI

High-sensitivity diamond magnetometer with nanoscale resolution

TL;DR: In this paper, the use of diamond impurity centres as magnetic field sensors is explored, promising a new approach to single-spin detection and magnetic-field imaging at the nanoscale.
Journal ArticleDOI

Magnetometry with nitrogen-vacancy defects in diamond

TL;DR: The physical principles that allow for magnetic field detection with NV centres are presented and first applications of NV magnetometers that have been demonstrated in the context of nano magnetism, mesoscopic physics and the life sciences are discussed.
Journal ArticleDOI

STED microscopy reveals crystal colour centres with nanometric resolution.

TL;DR: Based on a far-field fluorescence-based optical super-resolution scheme, this article resolved densely packed individual fluorescent color centres inside crystals with a farfield spatial resolution of 5.8 nm without photobleaching.
References
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Journal ArticleDOI

Optical stethoscopy: Image recording with resolution λ/20

TL;DR: In this paper, an extremely narrow aperture along a test object equipped with fine-line structures was used to demonstrate a resolving power of at least λ/20 which is to be compared with the values of λ 2.3 obtainable in conventional optical microscopy.
Journal ArticleDOI

Scanning confocal optical microscopy and magnetic resonance on single defect centers

TL;DR: In this article, the fluorescence of individual nitrogen-vacancy defect centers in diamond was observed with room-temperature scanning confocal optical microscopy, and the centers were photostable, showing no detectable change in their fluorescence emission spectrum as a function of time.
Journal ArticleDOI

On/off blinking and switching behaviour of single molecules of green fluorescent protein

TL;DR: A study of the photophysical behaviour of single molecules of the green fluorescent protein (GFP) derived from the jellyfish Aequorea victoria suggests the possibility of using these GFPs as fluorescent markers for time-dependent cell processes, and as molecular photonic switches or optical storage elements, addressable on the single-molecule level.
Journal ArticleDOI

Stable Solid-State Source of Single Photons

TL;DR: In this article, a stable all solid-state source for single photons utilizing the fluorescence light from a single nitrogen-vacancy center (N-V center) in diamond is presented.
Journal ArticleDOI

Single pentacene molecules detected by fluorescence excitation in a p-terphenyl crystal.

TL;DR: Experiments clearly prove that narrow peaks in the fluorescence excitation spectrum of a pentacene-doped p-terphenyl crystal stem from single molecules, and show the feasibility of the optical study of a single molecule and its local environment.
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