Solid-state atomic frequency standard

White, Cheryl; Hajimiri, Ali

doi:10.1109/freq.2005.1574061

Cited by 3 publications

(2 citation statements)

References 63 publications

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“…Second, this solid-state system derives its performance as a clock from exceptional spin lifetimes of the NV [11] and closely resembles atomic and molecular systems. The optical detection of the NV center also increases the signal-to-noise ratio of solid-state standards based on inductive detection [12]. Compared to vapor cells, this standard does not suffer from Doppler or collisional broadening.…”

Section: Introductionmentioning

confidence: 94%

Timekeeping with electron spin states in diamond

et al. 2013

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Frequency standards based on atomic states, such as Rb or Cs vapors, or single-trapped ions, are the most precise measures of time. Here we propose and analyze a precision oscillator approach based upon spins in a solid-state system, in particular, the nitrogen-vacancy defect in single-crystal diamond. We show that this system can have stability approaching portable atomic standards and is readily incorporable as a chip-scale device. Using a pulsed spin-echo technique, we anticipate an Allan deviation of σ y = 10 −7 τ −1/2 limited by thermally-induced strain variations; in the absence of such thermal fluctuations, the system is limited by spin dephasing and harbors an Allan deviation nearing ∼ 10 −12 τ −1/2 . Potential improvements based upon advanced diamond material processing, temperature stabilization, and nanophotonic engineering are discussed.

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Section: Introductionmentioning

confidence: 94%

Timekeeping with electron spin states in diamond

et al. 2013

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“…However, a condensed-matter clock could further improve size, weight, power, and cost by obviating the need for optical and vacuum elements. One approach is to exploit a radio-frequency spin resonance transition as a reference, as proposed using V ++ impurities in MgO [5] or nitrogen vacancy centres in diamond [6]. In these approaches, it is essential to operate at a transition where the resonance is not detuned by magnetic field fluctuations.…”

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confidence: 99%

Spin Resonance Clock Transition of the Endohedral Fullerene N15@C60

Harding

Zhou

et al. 2017

Phys. Rev. Lett.

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The endohedral fullerene ^{15}N@C_{60} has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock's projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

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