Plasmon triggered ultrafast operation of color centers in hBN layers

High-quality emission centers in two-dimensional materials are promising components for future photonic and optoelectronic applications. Carbon-enriched hexagonal boron nitride (hBN:C) layers host atom-like color-center (CC) defects with strong and robust photoemission up to room temperature. Placing the hBN:C layers on top of Ag triangle nanoparticles (NPs) accelerates the decay of the CC defects down to 46 ps from their reference bulk value of 350 ps. The ultrafast decay is achieved due to the efficient excitation of the plasmon modes of the Ag NPs by the near field of the CCs. Simulations of the CC/Ag NP interaction show that higher Purcell values are expected, although the measured decay of the CCs is limited by the instrument response. The influence of the NP thickness on the Purcell factor of the CCs is analyzed. The ultrafast operation of the CCs in hBN:C layers paves the way for their use in demanding applications, such as single-photon emitters and quantum devices.

[1]  A. Kubanek.  Coherent Quantum Emitters in Hexagonal Boron Nitride , 2022, Advanced Quantum Technologies.

[2]  K. Ariga,et al.  Surface Plasmon Tunability of Core-Shell Au@Mo6 Nanoparticles by Shell Thickness Modification. , 2022, The journal of physical chemistry letters.

[3]  A. Kubanek.  Review on coherent quantum emitters in hexagonal boron nitride , 2022, 2201.13184.

[4]  T. Iwasaki,et al.  Perspective on 2D material polaritons and innovative fabrication techniques , 2022, Applied Physics Letters.

[5]  K. Novoselov,et al.  Atomic structure of carbon centres in hBN: towards engineering of single photon sources , 2021, 2110.07842.

[6]  C. Qiu,et al.  Interface nano-optics with van der Waals polaritons , 2021, Nature.

[7]  Johannes E. Fröch,et al.  Coupling Spin Defects in a Layered Material to Nanoscale Plasmonic Cavities , 2021, Advanced materials.

[8]  Johannes E. Fröch,et al.  Integration of hBN Quantum Emitters in Monolithically Fabricated Waveguides , 2021, ACS Photonics.

[9]  P. Upadhyaya,et al.  High-Contrast Plasmonic-Enhanced Shallow Spin Defects in Hexagonal Boron Nitride for Quantum Sensing. , 2021, Nano letters.

[10]  Johannes E. Fröch,et al.  Coupling Spin Defects in Hexagonal Boron Nitride to Monolithic Bullseye Cavities. , 2021, Nano letters.

[11]  C. Png,et al.  Room-temperature plexcitonic strong coupling: Ultrafast dynamics for quantum applications , 2021, Applied Physics Letters.

[12]  P. Narang,et al.  Quantum Information and Algorithms for Correlated Quantum Matter. , 2020, Chemical reviews.

[13]  Kenji Watanabe,et al.  Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride , 2020, Nature Communications.

[14]  H. Riedmatten,et al.  Fast electrical modulation of strong near-field interactions between erbium emitters and graphene , 2020, Nature Communications.

[15]  Johannes E. Fröch,et al.  Generation of Spin Defects in Hexagonal Boron Nitride , 2020 .

[16]  K. Novoselov,et al.  Midgap radiative centers in carbon-enriched hexagonal boron nitride , 2020, Proceedings of the National Academy of Sciences.

[17]  I. Kaminer,et al.  Light–matter interactions with photonic quasiparticles , 2020, Nature Reviews Physics.

[18]  Kenji Watanabe,et al.  Bubble-Free Transfer Technique for High-Quality Graphene/Hexagonal Boron Nitride van der Waals Heterostructures. , 2020, ACS applied materials & interfaces.

[19]  R. Hillenbrand,et al.  Nanoscale Guiding of Infrared Light with Hyperbolic Volume and Surface Polaritons in van der Waals Material Ribbons , 2020, Advanced materials.

[20]  B. Gil,et al.  Photonics with hexagonal boron nitride , 2019, Nature Reviews Materials.

[21]  L. Martín-Moreno,et al.  Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas , 2019, Nature Communications.

[22]  M. Toth,et al.  Single Photon Sources in Atomically Thin Materials. , 2019, Annual review of physical chemistry.

[23]  A. N. Vamivakas,et al.  Rabi oscillations and resonance fluorescence from a single hexagonal boron nitride quantum emitter , 2019, Optica.

[24]  Vladimir M. Shalaev,et al.  Overcoming quantum decoherence with plasmonics , 2019, Science.

[25]  M. Toth,et al.  Direct measurement of quantum efficiency of single-photon emitters in hexagonal boron nitride , 2019, Optica.

[26]  Jeremy J. Baumberg,et al.  Extreme nanophotonics from ultrathin metallic gaps , 2019, Nature Materials.

[27]  M. Lukin,et al.  Large Excitonic Reflectivity of Monolayer MoSe_{2} Encapsulated in Hexagonal Boron Nitride. , 2018, Physical review letters.

[28]  T. T. Tran,et al.  Nanoassembly of quantum emitters in hexagonal boron nitride and gold nanospheres. , 2017, Nanoscale.

[29]  M. Plenio,et al.  Color Centers in Hexagonal Boron Nitride Monolayers: A Group Theory and Ab Initio Analysis , 2017, 1709.05414.

[30]  E. K. Hobbie,et al.  Origin of stretched-exponential photoluminescence relaxation in size-separated silicon nanocrystals , 2017 .

[31]  Igor Aharonovich,et al.  Deterministic Coupling of Quantum Emitters in 2D Materials to Plasmonic Nanocavity Arrays. , 2017, Nano letters.

[32]  J. Maze,et al.  Efficient single photon emission from a high-purity hexagonal boron nitride crystal , 2016, 1606.04124.

[33]  G. M. Akselrod,et al.  Ultrafast Room-Temperature Single Photon Emission from Quantum Dots Coupled to Plasmonic Nanocavities. , 2016, Nano letters.

[34]  L. Liz‐Marzán,et al.  A General Method for Solvent Exchange of Plasmonic Nanoparticles and Self-Assembly into SERS-Active Monolayers , 2015, Langmuir : the ACS journal of surfaces and colloids.

[35]  Matthew Pelton,et al.  Modified spontaneous emission in nanophotonic structures , 2015, Nature Photonics.

[36]  Xu Cui,et al.  Highly Stable, Dual-Gated MoS2 Transistors Encapsulated by Hexagonal Boron Nitride with Gate-Controllable Contact, Resistance, and Threshold Voltage. , 2015, ACS nano.

[37]  Igor Aharonovich,et al.  Quantum emission from hexagonal boron nitride monolayers , 2015, 2016 Conference on Lasers and Electro-Optics (CLEO).

[38]  P. Lodahl,et al.  Interfacing single photons and single quantum dots with photonic nanostructures , 2013, 1312.1079.

[39]  K. Sakoda,et al.  Ultrafast Energy Transfer in a Multichromophoric Layered Silicate , 2010 .

[40]  Takashi Taniguchi,et al.  Far-ultraviolet plane-emission handheld device based on hexagonal boron nitride , 2009 .

[41]  Kenji Watanabe,et al.  Deep Ultraviolet Light-Emitting Hexagonal Boron Nitride Synthesized at Atmospheric Pressure , 2007, Science.

[42]  Takashi Taniguchi,et al.  Synthesis of high-purity boron nitride single crystals under high pressure by using Ba-BN solvent , 2007 .

[43]  D. Johnston.  Stretched exponential relaxation arising from a continuous sum of exponential decays , 2006, cond-mat/0609331.

[44]  Takashi Taniguchi,et al.  Direct-bandgap properties and evidence for ultraviolet lasing of hexagonal boron nitride single crystal , 2004, Nature materials.

[45]  Kenjiro Miyano,et al.  Resonant light scattering from metal nanoparticles: Practical analysis beyond Rayleigh approximation , 2003 .