Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides

• URL: http://arxiv.org/abs/2104.12500v1
• Date: Mon, 26 Apr 2021 12:01:18 GMT
• Title: Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides
• Authors: Jan Philipp H\"opker, Varun B. Verma, Maximilian Protte, Raimund Ricken, Viktor Quiring, Christof Eigner, Lena Ebers, Manfred Hammer, Jens Foerstner, Christine Silberhorn, Richard P. Mirin, Sae Woo Nam, and Tim J. Bartley
• Abstract summary: We show the integration of amorphous tungsten silicide superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. We investigate the internal detection efficiency as well as detector absorption using coupling-independent characterization measurements.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate the integration of amorphous tungsten silicide superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. We show proof-of-principle detection of evanescently-coupled photons of 1550nm wavelength using bidirectional waveguide coupling for two orthogonal polarization directions. We investigate the internal detection efficiency as well as detector absorption using coupling-independent characterization measurements. Furthermore, we describe strategies to improve the yield and efficiency of these devices.

Related papers

• Mid-infrared characterization of NbTiN superconducting nanowire single-photon detectors on silicon-on-insulator [0.0]
  Superconducting nanowire single-photon detectors are widely used for detecting individual photons across various wavelengths from ultraviolet to near-infrared range. We present our efforts to expand the spectral detection capabilities of U-shaped NbTiN-based superconducting nanowire single-photon detectors into the mid-infrared range.
  arXiv  Detail & Related papers  (2024-08-28T17:25:20Z)
• Single photon emitters in monolayer semiconductors coupled to transition metal dichalcogenide nanoantennas on silica and gold substrates [49.87501877273686]
  Transition metal dichalcogenide (TMD) single photon emitters offer numerous advantages to quantum information applications. Traditional materials used for the fabrication of nanoresonators, such as silicon or gallium phosphide (GaP), often require a high refractive index substrate. Here, we use nanoantennas (NAs) fabricated from multilayer TMDs, which allow complete flexibility with the choice of substrate.
  arXiv  Detail & Related papers  (2024-08-02T07:44:29Z)
• Efficient generation of broadband photon pairs in shallow-etched lithium niobate nanowaveguide [0.0]
  shallow-etched periodically poled lithium niobate waveguide to realize broadband spontaneous down-conversion(SPDC) on nanophotonic chip. We demonstrate photon-pair generation with a high brightness of 11.7GHz/mW and bandwidth of 22THz, in a 5.7-mm-long PPLN waveguide.
  arXiv  Detail & Related papers  (2024-06-25T10:21:55Z)
• Avoiding lateral mode leakage in thin film lithium niobate waveguides for the generation of spectrally pure photons at telecom wavelengths [0.0]
  Photonic integrated optical components, notably straight waveguides, serve as pivotal elements for on-chip generation and manipulation of quantum states of light. We focus on optimizing waveguides based on lithium niobate on insulator (LNOI) to generate photon pairs at telecom wavelength using spontaneous parametric down-conversion (SPDC) Specifically, we investigate lateral leakage for all possible SPDC processes involving type 0, type I and type II phase matching conditions in an X-cut lithium niobate waveguide.
  arXiv  Detail & Related papers  (2024-02-08T14:12:55Z)
• Precise characterization of a silicon carbide waveguide fiber interface [0.0]
  Emitters in high refractive index materials like 4H-SiC suffer from reduced detection of photons because of losses caused by total internal reflection. We create a bright single photon source based on waveguide integrated V2 defects in 4H-SiC and achieve an overall photon count rate of 181 kilo-counts per second.
  arXiv  Detail & Related papers  (2024-01-11T18:20:18Z)
• Room Temperature Fiber-Coupled single-photon devices based on Colloidal Quantum Dots and SiV centers in Back Excited Nanoantennas [91.6474995587871]
  Directionality is achieved with a hybrid metal-dielectric bullseye antenna. Back-excitation is permitted by placement of the emitter at or in a sub-wavelength hole positioned at the bullseye center.
  arXiv  Detail & Related papers  (2023-03-19T14:54:56Z)
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics [97.5153823429076]
  We show the first successful coupling of photons from intrinsic single-photon emitters in SiN to monolithically integrated waveguides made of the same material. Results pave the way toward the realization of scalable, technology-ready quantum photonic integrated circuitry.
  arXiv  Detail & Related papers  (2022-05-17T16:51:29Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• 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)
• Quantum Borrmann effect for dissipation-immune photon-photon correlations [137.6408511310322]
  We study theoretically the second-order correlation function $g(2)(t)$ for photons transmitted through a periodic Bragg-spaced array of superconducting qubits, coupled to a waveguide. We demonstrate that photon bunching and anti-bunching persist much longer than both radiative and non-radiative lifetimes of a single qubit.
  arXiv  Detail & Related papers  (2020-09-29T14:37:04Z)
• Integrating two-photon nonlinear spectroscopy of rubidium atoms with silicon photonics [0.0]
  integrated silicon photonic chip, composed of several sub-wavelength ridge waveguides, immersed in a micro-cell with rubidium vapor. We observe that the waveguide transmission spectrum gets modified when the photonic mode is coupled to rubidium atoms through its evanescent tail. This work paves the way towards a miniaturized, low-power, and integrated hybrid atomic-photonic system compatible with CMOS technologies.
  arXiv  Detail & Related papers  (2020-03-10T14:13:42Z)

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.