A single-photon transistor using nanoscale surface plasmons

  title={A single-photon transistor using nanoscale surface plasmons},
  author={Darrick E. Chang and Anders S S{\o}rensen and Eugene A. Demler and Mikhail D. Lukin},
  journal={Nature Physics},
Photons rarely interact—which makes it challenging to build all-optical devices in which one light signal controls another. Even in nonlinear optical media, in which two beams can interact because of their influence on the medium’s refractive index, this interaction is weak at low light levels. Here, we propose a novel approach to realizing strong nonlinear interactions at the single-photon level, by exploiting the strong coupling between individual optical emitters and propagating surface… 
Coherent interaction of single molecules and plasmonic nanowires
Quantum plasmonics opens the option to integrate complex quantum optical circuitry onto chip scale devices. In the past, often external light sources were used and nonclassical light was coupled in
Single photon transistor
The hopeful solution proposed here is to utilize a tight concentration of optical fields in conjunction with guided surface plasmons along a conducting nanowire in order to achieve strong non-linear interactions between optical emitters.
Generation of single optical plasmons in metallic nanowires coupled to quantum dots
This work demonstrates a cavity-free, broadband approach for engineering photon–emitter interactions via subwavelength confinement of optical fields near metallic nanostructures and shows that efficient coupling is accompanied by more than 2.5-fold enhancement of the quantum dot spontaneous emission, in good agreement with theoretical predictions.
Single-photon Transistors Based on the Interaction of an Emitter and Surface Plasmons
A symmetrical approach is suggested (Chang DE et al. Nat Phys 3:807, 2007) to realize a single-photon transistor, where the presence (or absence) of a single incident photon in a ‘gate’ field is
Single Photon Transistor
The concept of an optical transistor is not a new one. The difficulty with building optical devices that use light as a control, is that photons do not usually interact strongly. This makes it very
Plasmonics Goes Quantum
A combined plasmonics and metamaterials approach may allow light-matter interaction to be controlled at the single-photon level, and nanoscale plasmons, which can transmit classical information with unprecedented bandwidth, are also naturally conducive to quantum information processing.
Changing optical band structure with single photons
Achieving strong interactions between individual photons enables a wide variety of exciting possibilities in quantum information science and many-body physics. Cold atoms interfaced with nanophotonic
Giant nonlinear interaction between two optical beams via a quantum dot embedded in a photonic wire
Optical non-linearities usually appear for large intensities, but discrete transitions allow for giant non-linearities operating at the single photon level. This has been demonstrated in the last
Second-order quantum nonlinear optical processes in single graphene nanostructures and arrays
Intense efforts have been made in recent years to realize nonlinear optical interactions at the single-photon level. Much of this work has focused on achieving strong third-order nonlinearities, such
Quantum and nonlinear optics with surface plasmons: dependence of propagation losses on temperature
Using quantum optical techniques to manipulate nanoscale surface plasmons guided along conducting nanostructures can enable an unprecedented level of control over the interaction between light and


All-optical modulation by plasmonic excitation of CdSe quantum dots
Photonics is a promising candidate technology for information processing, communication and data storage. Essential building blocks, such as logic elements and modulators, have been demonstrated.
Strong coupling of single emitters to surface plasmons
We propose a method that enables strong, coherent coupling between individual optical emitters and electromagnetic excitations in conducting nanostructures. The excitations are optical plasmons that
Single-photon all-optical switching using waveguide-cavity quantum electrodynamics
This paper demonstrates switching of a single signal photon by a single gating photon of a different frequency, via a cross-phase-modulation. This effect is mediated by materials exhibiting
Quantum optics with surface plasmons.
We describe a technique that enables strong, coherent coupling between individual optical emitters and guided plasmon excitations in conducting nanostructures at optical frequencies. We show that
Nonlinear interaction of two photons with a one-dimensional atom: Spatiotemporal quantum coherence in the emitted field
The nonlinear photon-photon interaction mediated by a single two-level atom is studied theoretically based on a one-dimensional model of the field-atom interaction. This model allows us to determine
Electromagnetically induced transparency : Optics in coherent media
Coherent preparation by laser light of quantum states of atoms and molecules can lead to quantum interference in the amplitudes of optical transitions. In this way the optical properties of a medium
Strong coupling between surface plasmons and excitons in an organic semiconductor.
The emission of the low energy plasmon-exciton mixed state has been observed and is largely shifted from the uncoupled emission.
Experimental demonstration of fiber-accessible metal nanoparticle plasmon waveguides for planar energy guiding and sensing
Experimental evidence of mode-selective evanescent power coupling at telecommunication frequencies with efficiencies up to 75% from a tapered optical fiber to a metal nanoparticle plasmon waveguide
Optical gain and stimulated emission in nanocrystal quantum dots.
This work examined the competing dynamical processes involved in optical amplification and lasing in nanocrystal quantum dots and found that, despite a highly efficient intrinsic nonradiative Auger recombination, large optical gain can be developed at the wavelength of the emitting transition for close-packed solids of these dots.
Enhancement of single-molecule fluorescence using a gold nanoparticle as an optical nanoantenna.
Comparisons with three-dimensional calculations guide us to decipher the contributions of the excitation enhancement, spontaneous emission modification, and quenching in the molecular excitation and emission processes.