Doubly Resonant Nanoantennas on Diamond for Spatial Addressing of Spin States

Jaffe, Tzach; Sorias, Ofir; Gal, Lior; Kalish, R.; Orenstein, Meir

doi:10.1021/acs.nanolett.7b01088

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…In addition, the nanopyramid can potentially mitigate the short coherence time issue due to reduced dimensionality, i.e., low coupling to the acoustic phonons, which are not supported in very small nanostructures due to low phonon density of states . Integration of these structures with nanophotonic elements such as plasmonics can increase further the external quantum efficiencies and the controlled spatial addressing to specific spin states …”

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confidence: 99%

Deterministic Arrays of Epitaxially Grown Diamond Nanopyramids with Embedded Silicon‐Vacancy Centers

Jaffe

Felgen

Gal

et al. 2018

Advanced Optical Materials

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In contrast to the more common nitrogen-vacancy (NV) center in diamond, the SiV possesses bright narrow band and spectrally stable optical transition concentrated (70% of the fluorescence) in its zero phonon line (ZPL) protected by inversion symmetry, even at room temperature. [4,5] Despite these attractive characteristics, some properties hinder the SiV applicability: short coherence times (nanosecond scale), limited mainly by coupling to the thermal acoustic phonon bath [6] and low extraction efficiency from the high-index diamond substrate. Different methods for mitigating these issues have been investigated in recent years, [1,[7][8][9][10] but currently there is no apparent approach to exploit the SiV superb optical properties at room temperature and at the same time to increase its photon outcoupling without compromising its optical quality and coherence. The use of nanodiamonds or nanostructures prepared by a top-down approach can mitigate the issue of total internal reflection within the diamond, but at the same time may introduce additional decoherence [11] and optical instability mechanisms attributed to poor surface quality (surface defects containing spins, charge traps, nondiamond phases, surface termination of atoms and groups [12] ) as a result of the synthesis or structuring process. The SiVs can be formed in the diamond host via ion implantation of silicon ions [1,13] or by introducing silicon atoms from a solid or gas precursor during the growth stage of diamond layers. [14,15] The latter is considered to better preserve the quality of the diamond layer by avoiding implantation damages and promoting a smaller amount of vacancy clusters and nonradiative sites which can otherwise hinder the SiV applicability. Herein, the ability to sculpt nanostructures by a bottom-up approach enables the creation of higher quality complex structures that are not accessible via top-down fabrication techniques. [16][17][18] In particular, this concerns the fabrication of highly confined and deterministic nanostructures hosting an atom-like system that maintain the original substrate quality -a critical prerequisite for quantum information and sensing applications. Here, we present a robust and deterministic template-assisted bottom-up process for the creation of high-quality nanoscale diamond pyramids incorporating SiVs.The negatively charged silicon-vacancy center (SiV) in diamond is a potential high-quality source of single-indistinguishable photons for quantum information processing and quantum electrodynamics applications. However, when embedded in bulk diamond, this emitter suffers from both, relatively low extraction efficiency attributed to total internal reflection as well as nondeterministic location. On the other hand, its implementation in nanodiamonds is impeded by optical dephasing owing to their degraded surface quality. Here a robust and deterministic template-assisted bottom-up process for the creation of high-quality diamond nanopyramids incorporating SiVs is reported. This method employs a predefi...

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confidence: 99%

Deterministic Arrays of Epitaxially Grown Diamond Nanopyramids with Embedded Silicon‐Vacancy Centers

Jaffe

Felgen

Gal

et al. 2018

Advanced Optical Materials

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“…To date, great efforts have been devoted to realizing this goal, but curial problems still remain. The dual-resonant modes of most such structures cannot be modulated independently, and in many dual-mode cases-such as the "templar cross" antenna [18] or the three rectangular arms [19]there is actually only one spectrally tunable mode. These drawbacks in mode modulation severely limit the design of an on-demand dual-mode photonic structure with targeted spectral bands.…”

Section: Introductionmentioning

confidence: 99%

Integrating lattice and gap plasmonic modes to construct dual-mode metasurfaces for enhancing light–matter interaction

Xue

et al. 2021

Sci. China Mater.

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Photonic structures with optical resonances beyond a single controllable mode are strongly desired for enhancing light-matter interactions and bringing about advanced photonic devices. However, the realization of effective multimodal photonic structures has been restricted by the limited tunable range of mode manipulation, the spatial dispersions of electric fields or the polarization-dependent excitations. To overcome these limitations, we create a dualmode metasurface by integrating the plasmonic surface lattice resonance and the gap plasmonic modes; this metasurface offers a widely tunable spectral range, good overlap in the spatial distribution of electric fields, and polarization independence of excitation light. To show that such dual-mode metasurfaces are versatile platforms for enhancing lightmatter interactions, we experimentally demonstrate a significant enhancement of second-harmonic generation using our design, with a conversion efficiency of 1-3 orders of magnitude larger than those previously obtained in plasmonic systems. These results may inspire new designs for functional multimodal photonic structures.

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“…The creation of such three‐dimensional structures with incorporated color centers could lead to new architectures in different fields of applications including but not limited to photonic and sensing applications. Combination of these structures with, for exaxmple, plasmonic antennas could enable the spatial addressing of incorporated color centers and further enhance the light‐matter interaction.…”

Section: Introductionmentioning

confidence: 99%

Homoepitaxial Diamond Structures with Incorporated SiV Centers

Felgen

Naydenov

Jelezko

et al. 2018

Physica Status Solidi (a)

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The incorporation of SiV centers during diamond overgrowth on top of partly covered monocrystalline diamond pillars with diameters down to 200 nm are reported. The pillars themselves are prepared via electron beam lithography and inductively coupled plasma reactive ion etching. Then they are covered with a spin‐on‐glass (SOG) (perhydropolysilazane, PHPS) still jutting the apices of the pillars. After a short overgrowth step and removal of the residual SOG the optical investigations reveal the presence of ensembles of SiV centers in the overgrown part of the pillars, a specific location of the centers, and a very strong PL signal.

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Doubly Resonant Nanoantennas on Diamond for Spatial Addressing of Spin States

Cited by 7 publications

References 23 publications

Deterministic Arrays of Epitaxially Grown Diamond Nanopyramids with Embedded Silicon‐Vacancy Centers

Deterministic Arrays of Epitaxially Grown Diamond Nanopyramids with Embedded Silicon‐Vacancy Centers

Integrating lattice and gap plasmonic modes to construct dual-mode metasurfaces for enhancing light–matter interaction

Homoepitaxial Diamond Structures with Incorporated SiV Centers

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