Local laser heating effects in diamond probed by photoluminescence of SiV centers at low temperature

• URL: http://arxiv.org/abs/2306.06972v1
• Date: Mon, 12 Jun 2023 09:13:54 GMT
• Title: Local laser heating effects in diamond probed by photoluminescence of SiV centers at low temperature
• Authors: YuanFei Gao, JiaMin Lai, ZhenYao Li, PingHeng Tan, ChongXin Shan, and Jun Zhang
• Abstract summary: defects during the growth process can result in a great degradation of thermal conductivity, especially at low temperatures. We observed the dynamic redshift and broadening of zero phonon line (ZPL) of silicon-vacancy (SiV) centers in diamond. We have estimated the thermal conductivity of around 1 W/(mK) at the local site, which is a two order magnitude lower than that of single-crystal diamond.
• Score: 2.4941739848557627
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Diamond is generally considered to have high thermal conductivity, so little attention has been paid to the laser heating effects at low excitation power. However, defects during the growth process can result in a great degradation of thermal conductivity, especially at low temperatures. Here, we observed the dynamic redshift and broadening of zero phonon line (ZPL) of silicon-vacancy (SiV) centers in diamondin the experiment. Utilizing the intrinsic temperature response of the fine structure spectra of SiV as a probe, we confirmed that the laser heating effect appears and the temperature rising results from high defect concentration. By simulating the thermal diffusion process, we have estimated the thermal conductivity of around 1 W/(mK) at the local site, which is a two order magnitude lower than that of single-crystal diamond. Our results provide a feasible scheme for characterizing the laser heating effect of diamond at low temperatures.

Related papers

• Overcoming temperature limitations in laser cooling using dressed states and diamond vacancies [0.0]
  The established approach to laser cooling of solids relies on anti-Stokes fluorescence. We propose an alternative method which does not suffer from this limitation.
  arXiv  Detail & Related papers  (2025-01-23T11:05:46Z)
• Cavity-Enhanced Emission and Absorption of Color Centers in a Diamond Membrane With Selectable Strain [34.006376530375064]
  Group IV color centers in diamond are among the most promising optically active spin systems. We increase the ground-state splitting by up to an order of magnitude by induced strain in a single-crystal diamond membrane. Together with the Purcell-enhanced twofold reduction in emitter lifetime below 1ns, this makes the system a promising spin-photon interface at moderate temperatures of 4K.
  arXiv  Detail & Related papers  (2024-05-30T16:08:13Z)
• An anti-maser for quantum-limited cooling of a microwave cavity [58.720142291102135]
  We experimentally demonstrate how to generate a state in condensed matter at moderate cryogenic temperatures. This state is then used to efficiently remove microwave photons from a cavity. Such an "anti-maser" device could be extremely beneficial for applications that would normally require cooling to millikelvin temperatures.
  arXiv  Detail & Related papers  (2023-07-24T11:12:29Z)
• Creation of NV centers in diamond under 155 MeV electron irradiation [0.0]
  Single-crystal diamond substrates presenting a high concentration of negatively charged nitrogen-vacancy centers (NV-) are on high demand for solid-state sensors. In this work we examine the effect of electron irradiation in a previously unexplored regime: extremely high energy electrons, at 155 MeV.
  arXiv  Detail & Related papers  (2023-05-24T10:48:47Z)
• High temperature spectroscopy of nitrogen vacancy centers in diamond [0.0]
  Spin resonances are studied using optical detection of magnetic resonance (ODMR) Optical spectroscopy is employed to study radiative transitions. In addition, the ODMR resonance frequencies were decreased, and the phonon line emission shifted to higher wavelengths.
  arXiv  Detail & Related papers  (2022-09-26T10:20:48Z)
• Measurement of the Low-temperature Loss Tangent of High-resistivity Silicon with a High Q-factor Superconducting Resonator [58.720142291102135]
  We present the direct loss tangent measurement of a high-resist intrinsicivity (100) silicon wafer in the temperature range from 70 mK to 1 K. The measurement was performed using a technique that takes advantage of a high quality factor superconducting niobium resonator.
  arXiv  Detail & Related papers  (2021-08-19T20:13:07Z)
• Laser threshold magnetometry using green light absorption by diamond nitrogen vacancies in an external cavity laser [52.77024349608834]
  Nitrogen vacancy (NV) centers in diamond have attracted considerable recent interest for use in quantum sensing. We show theoretical sensitivity to magnetic field on the pT/sqrt(Hz) level is possible using a diamond with an optimal density of NV centers.
  arXiv  Detail & Related papers  (2021-01-22T18:58:05Z)
• Laser Cooling of Germanium Semiconductor Nanocrystals [2.329292456388869]
  Anti-Stokes photoluminescence has been successfully realized in condensed media. At high laser intensities, laser cooling with lattice temperature as low as 50K is inferred.
  arXiv  Detail & Related papers  (2021-01-13T02:04:50Z)
• Temperature insensitive type II quasi-phasematched spontaneous parametric downconversion [62.997667081978825]
  The temperature dependence of the refractive indices of potassium titanyl phosphate (KTP) are shown to enable quasi-phasematched type II spontaneous parametric downconversion. We demonstrate the effect experimentally, observing temperature-insensitive degenerate emission at 1326nm, within the telecommunications O band. This result has practical applications in the development of entangled photon sources for resource-constrained environments.
  arXiv  Detail & Related papers  (2020-12-09T16:14:15Z)
• Resonant high-energy bremsstrahlung of ultrarelativistic electrons in the field of a nucleus and a pulsed light wave [68.8204255655161]
  Research investigates the resonant high-energy spontaneous bremsstrahlung of ultrarelativistic electrons with considerable energies in the field of a nucleus and a quasimonochromatic laser wave.
  arXiv  Detail & Related papers  (2020-04-05T16:27:11Z)
• Nitrogen-vacancy defect emission spectra in the vicinity of an adjustable silver mirror [62.997667081978825]
  Optical emitters of quantum radiation in the solid state are important building blocks for emerging technologies. We experimentally study the emission spectrum of an ensemble of nitrogen-vacancy defects implanted around 8nm below the planar diamond surface.
  arXiv  Detail & Related papers  (2020-03-31T10:43:26Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.