Strain sensitivity and symmetry of 2.65 eV color center in diamond nanoscale needles

Venturi, Linda; Rigutti, Lorenzo; Houard, Jonathan; Blum, Ivan; Malykhin, Sergey A.; Obraztsov, A. N.; Vella, A.

doi:10.1063/1.5092329

Cited by 2 publications

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“…The This behavior is most probably related to the presence of a residual surface field at the surface of the conical part of the tip, a field which is not sufficiently intense for promoting evaporation, but which still has non-negligible mechanical effects. It can also be underlined that this conclusion is consistent with the results obtained in a previous works, in which the splitting of the zero-phonon lines of the PL of color centers in diamond were studied [26,27]. In these works, it was possible to measure the apex stress under the hypothesis that the stress was uniaxial.…”

Section: Correlation Of Model and Experiments -Interpretation Of The ...supporting

confidence: 90%

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In Situ Spectroscopic Study of the Optomechanical Properties of Evaporating Field Ion Emitters

et al. 2021

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The possibility of measuring in-situ, operando photoluminescence spectroscopy within a photonic atom probe allows for real time study of the mechanical stress state within a field emitter either statically, as a function of the field-induced tensile stress or dynamically, as a result of the evolution of the shape of the emitter upon its evaporation. The dynamic evolution results from the relaxation of the strain induced by lattice mismatch and by the propagation of the stress from the apex while the morphology of the field emitter changes. The optomechanical information can be interpreted through the three-dimensional atomic scale images of the chemical composition of the emitter obtained through standard atom probe analysis. In the present work, the photoluminescence signal of a ZnO/(Mg,Zn)O quantum well allows for the local measurement of strain within the well and of the electrostatic field applied to the apex of the nanoscale field emitter.

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Section: Correlation Of Model and Experiments -Interpretation Of The ...supporting

confidence: 90%

“…This possibility is not exploited in this work, in which a single emitter is studied [16]. PL has also been collected during a slow initial voltage ramp, with steps at a set of bias values, in order to obtain complementary information on the field-induced strain [26,27].…”

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confidence: 99%

In Situ Spectroscopic Study of the Optomechanical Properties of Evaporating Field Ion Emitters

et al. 2021

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Polarization CARS microscopy of diamond needles

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Karpicz,

et al. 2024

Applied Physics Letters

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We employed polarization-sensitive nonlinear optical microscopy to assess crystallinity of diamond microneedles. In the experiment, we mapped the coherent anti-Stokes Raman spectroscopy (CARS) signal in the vicinity of 1332 cm−1 diamond Raman peak over the needle length and demonstrated that the third-order nonlinear optical susceptibility remains the same at both micrometer-sized base and the nanoscale thin apex of the needle. This indicated the single-crystal nature of the diamond needle and allowed us to describe the results of the polarization CARS measurements in terms of the third-order nonlinear susceptibility of diamond. High crystallinity of the needle was also confirmed by measuring the linewidth of the zero-phonon line of the silicon-vacancy centers in diamond.

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Strain sensitivity and symmetry of 2.65 eV color center in diamond nanoscale needles

Abstract: Long optical coherence times of shallow-implanted, negatively charged silicon vacancy centers in diamond Applied Physics Letters 116, 064001 (2020);

Cited by 2 publications

References 27 publications

In Situ Spectroscopic Study of the Optomechanical Properties of Evaporating Field Ion Emitters

In Situ Spectroscopic Study of the Optomechanical Properties of Evaporating Field Ion Emitters

Polarization CARS microscopy of diamond needles

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