With the advent of quantum technology, nitrogen vacancy ( $\mathrm{N}$ - $V$ ) centers in diamond turn out to be a frontier that provides an efficient platform for quantum computation, communication, and sensing applications. Due to the coupled spin-charge dynamics of the $\mathrm{N}$ - $V$ system, knowledge of $\mathrm{N}$ - $V$ charge-state dynamics can help to formulate efficient spin-control sequences strategically. Here, we report two spectroscopy-based deconvolution methods to create charge-state mapping images of ensembles of $\mathrm{N}$ - $V$ centers in diamond. First, relying on the fact that an off-axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of $\mathrm{N}$ -${V}^{\ensuremath{-}}$, we perform decomposition of the optical spectrum for an ensemble of $\mathrm{N}$ - $V$ and extract the spectra for $\mathrm{N}$ -${V}^{\ensuremath{-}}$ and $\mathrm{N}$ - ${V}^{0}$ states. Next, we introduce an optical-filter-based decomposition protocol and perform PL imaging for $\mathrm{N}$ -${V}^{\ensuremath{-}}$ and $\mathrm{N}$ - ${V}^{0}$ . Previously obtained spectra for $\mathrm{N}$ -${V}^{\ensuremath{-}}$ and $\mathrm{N}$ - ${V}^{0}$ states are used to calculate their transmissivities through a long-pass optical filter. These results help us to determine the spatial distribution of the $\mathrm{N}$ - $V$ charge states in a diamond sample.With the advent of quantum technology, nitrogen vacancy ($\mathrm{N}$-$V$) centers in diamond turn out to be a frontier that provides an efficient platform for quantum computation, communication, and sensing applications. Due to the coupled spin-charge dynamics of the $\mathrm{N}$-$V$ system, knowledge of $\mathrm{N}$-$V$ charge-state dynamics can help to formulate efficient spin-control sequences strategically. Here, we report two spectroscopy-based deconvolution methods to create charge-state mapping images of ensembles of $\mathrm{N}$-$V$ centers in diamond. First, relying on the fact that an off-axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of $\mathrm{N}$-${V}^{\ensuremath{-}}$, we perform decomposition of the optical spectrum for an ensemble of $\mathrm{N}$-$V$ and extract the spectra for $\mathrm{N}$-${V}^{\ensuremath{-}}$ and $\mathrm{N}$-${V}^{0}$ states. Next, we introduce an optical-filter-based decomposition protocol and perform PL imaging for $\mathrm{N}$-${V}^{\ensuremath{-}}$ and $\mathrm{N}$-${V}^{0}$. Previously obtained spectra for $\mathrm{N}$-${V}^{\ensuremath{-}}$ and $\mathrm{N}$-${V}^{0}$ states are used to calculate their transmissivities through a long-pass optical filter. These results help us to determine the spatial distribution of the $\mathrm{N}$-$V$ charge states in a diamond sample.

Physical Review AppliedFeb 16, 20225 citations

Magnetic field-assisted spectral decomposition and imaging of charge states of NV centers in diamond

Tanmoy Chakraborty, R. Bhattacharya, V. S. Anjusha +3 more

With the advent of quantum technology, nitrogen vacancy ( $NV$ ) centers in diamond turn out to be a frontier which provides an efficient platform for quantum computation, communication and sensing applications. Due to the coupled spin-charge dynamics of the $NV$ system, knowledge about $NV$ charge state dynamics can help to formulate efficient spin control sequences strategically. Through this paper we report two spectroscopy-based deconvolution methods to create charge state mapping images of ensembles of $NV$ centers in diamond. First, relying on the fact that an off axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of $NV^-$ , we perform decomposition of the optical spectrum for an ensemble of $NV$ s and extract the spectra for $NV^-$ and $NV^0$ states. Next, we introduce an optical filter based decomposition protocol and perform PL imaging for $NV^-$ and $NV^0$ . Earlier obtained spectra for $NV^-$ and $NV^0$ states are used to calculate their transmissivities through a long pass optical filter. These results help us to determine the spatial distribution of the $NV$ charge states in a diamond sample.With the advent of quantum technology, nitrogen vacancy ($NV$) centers in diamond turn out to be a frontier which provides an efficient platform for quantum computation, communication and sensing applications. Due to the coupled spin-charge dynamics of the $NV$ system, knowledge about $NV$ charge state dynamics can help to formulate efficient spin control sequences strategically. Through this paper we report two spectroscopy-based deconvolution methods to create charge state mapping images of ensembles of $NV$ centers in diamond. First, relying on the fact that an off axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of $NV^-$, we perform decomposition of the optical spectrum for an ensemble of $NV$s and extract the spectra for $NV^-$ and $NV^0$ states. Next, we introduce an optical filter based decomposition protocol and perform PL imaging for $NV^-$ and $NV^0$. Earlier obtained spectra for $NV^-$ and $NV^0$ states are used to calculate their transmissivities through a long pass optical filter. These results help us to determine the spatial distribution of the $NV$ charge states in a diamond sample.

arXiv:2103.12807Mar 23, 20210 citations

Field-theoretical methods in quantum magnetism

D. C. Cabra, Pierre Pujol

Lecture notes in physicsJan 1, 200422 citations

Numerical Study on Aging Dynamics in Ising Spin-Glass Models: Temperature-Change Protocols (Frontiers in Magnetism)

達雄小森, Hajime Yoshino, Hajime Takayama

Journal of the Physical Society of JapanJan 1, 200014 citations

With the advent of quantum technology, nitrogen vacancy (

\mathrm{N}

V

) centers in diamond turn out to be a frontier that provides an efficient platform for quantum computation, communication, and sensing applications. Due to the coupled spin-charge dynamics of the

\mathrm{N}

V

system, knowledge of

\mathrm{N}

V

charge-state dynamics can help to formulate efficient spin-control sequences strategically. Here, we report two spectroscopy-based deconvolution methods to create charge-state mapping images of ensembles of

\mathrm{N}

V

centers in diamond. First, relying on the fact that an off-axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of

\mathrm{N}

-${V}^{\ensuremath{-}}$, we perform decomposition of the optical spectrum for an ensemble of

\mathrm{N}

V

and extract the spectra for

\mathrm{N}

-${V}^{\ensuremath{-}}$ and

\mathrm{N}

{V}^{0}

states. Next, we introduce an optical-filter-based decomposition protocol and perform PL imaging for

\mathrm{N}

-${V}^{\ensuremath{-}}$ and

\mathrm{N}

{V}^{0}

. Previously obtained spectra for

\mathrm{N}

-${V}^{\ensuremath{-}}$ and

\mathrm{N}

{V}^{0}

states are used to calculate their transmissivities through a long-pass optical filter. These results help us to determine the spatial distribution of the

\mathrm{N}

V

charge states in a diamond sample.

With the advent of quantum technology, nitrogen vacancy (

NV

) centers in diamond turn out to be a frontier which provides an efficient platform for quantum computation, communication and sensing applications. Due to the coupled spin-charge dynamics of the

NV

system, knowledge about

NV

charge state dynamics can help to formulate efficient spin control sequences strategically. Through this paper we report two spectroscopy-based deconvolution methods to create charge state mapping images of ensembles of

NV

centers in diamond. First, relying on the fact that an off axis external magnetic field mixes the electronic spins and selectively modifies the photoluminescence (PL) of

NV^-

, we perform decomposition of the optical spectrum for an ensemble of

NV

s and extract the spectra for

NV^-

and

NV^0

states. Next, we introduce an optical filter based decomposition protocol and perform PL imaging for

NV^-

and

NV^0

. Earlier obtained spectra for

NV^-

and

NV^0

states are used to calculate their transmissivities through a long pass optical filter. These results help us to determine the spatial distribution of the

NV

charge states in a diamond sample.