Directionally Tunable Co- and Counter-Propagating Photon Pairs from a
Nonlinear Metasurface
- URL: http://arxiv.org/abs/2403.07651v1
- Date: Tue, 12 Mar 2024 13:35:57 GMT
- Title: Directionally Tunable Co- and Counter-Propagating Photon Pairs from a
Nonlinear Metasurface
- Authors: Maximilian A. Weissflog, Jinyong Ma, Jihua Zhang, Tongmiao Fan, Thomas
Pertsch, Dragomir N. Neshev, Sina Saravi, Frank Setzpfandt, Andrey A.
Sukhorukov
- Abstract summary: We show for the first time precise control of the emission angle of photon pairs generated from a nonlinear metasurface.
Our measurements show angularly tunable pair-generation with high coincidence-to-accidental ratio.
This work provides an important addition to the toolset of sub-wavelength thickness photon pair sources.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Nonlinear metasurfaces have recently been established as a new platform for
generating photon pairs via spontaneous parametric down-conversion. While for
classical harmonic generation in metasurfaces a high level of control over all
degrees of freedom of light has been reached, this capability is yet to be
developed for photon pair generation. In this work, we theoretically and
experimentally demonstrate for the first time precise control of the emission
angle of photon pairs generated from a nonlinear metasurface. Our measurements
show angularly tunable pair-generation with high coincidence-to-accidental
ratio for both co- and counter-propagating emission. The underlying principle
is the transverse phase-matching of guided-mode resonances with strong angular
dispersion in a nonlinear lithium niobate metagrating. We provide a
straightforward design strategy for photon pair generation in such a device and
find very good agreement between the calculations and experimental results.
Here we use all-optical emission angle tuning by means of the pump wavelength,
however the principle could be extended to modulation via the electro-optic
effect in lithium niobate. In sum, this work provides an important addition to
the toolset of sub-wavelength thickness photon pair sources.
Related papers
- Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations [0.09423257767158633]
We present a solution by achieving polarization engineering of frequency-nondegenerate biphotons emitted via spontaneous parametric down-conversion.
By performing a comprehensive polarization tomography, we demonstrate that the polarization of the emitted photons directly reflects the qBIC mode's far-field properties.
arXiv Detail & Related papers (2024-09-06T19:17:11Z) - 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) - 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) - Efficient single-photon pair generation by spontaneous parametric
down-conversion in nonlinear plasmonic metasurfaces [0.0]
Spontaneous parametric down-conversion (SPDC) is one of the most versatile nonlinear optical techniques for the generation of entangled and correlated single-photon pairs.
Here we propose a plasmonic metasurface design based on silver nanostripes combined with a bulk lithium niobate (LiNbO3) crystal to realize a new scalable, ultrathin, and efficient SPDC source.
arXiv Detail & Related papers (2021-11-18T15:31:38Z) - Complete conversion between one and two photons in nonlinear waveguides
with tailored dispersion [62.997667081978825]
We show theoretically how to control coherent conversion between a narrow-band pump photon and broadband photon pairs in nonlinear optical waveguides.
We reveal that complete deterministic conversion as well as pump-photon revival can be achieved at a finite propagation distance.
arXiv Detail & Related papers (2021-10-06T23:49:44Z) - Enhanced generation of non-degenerate photon-pairs in nonlinear
metasurfaces [55.41644538483948]
Non-degenerate photon-pair generation can enable orders-of-surface enhancement of the photon rate and spectral brightness.
We show that the entanglement of the photon-pairs can be tuned by varying the pump polarization, which can underpin future advances and applications of ultra-compact quantum light sources.
arXiv Detail & Related papers (2021-04-15T08:20:17Z) - Spontaneous Parametric Down-Conversion from Resonant Metasurfaces [0.0]
We demonstrate first-time generation of photon pairs via spontaneous parametric-down conversion in lithium niobate quantum optical metasurfaces.
By engineering the quantum optical metasurface, we tailor the photon-pair spectrum in a controlled way.
arXiv Detail & Related papers (2021-03-15T16:47:44Z) - Dispersion-engineered $\chi^{(2)}$ nanophotonics: a flexible tool for
nonclassical light [0.0]
This article reviews recent progress in quasi-phasematched $chi(2)$ nonlinear nanophotonics.
We establish design rules for the bandwidth and interaction lengths of various nonlinear processes, and provide examples for how these processes can be engineered in nanophotonic devices.
arXiv Detail & Related papers (2021-03-03T10:16:04Z) - Directional emission of down-converted photons from a dielectric
nano-resonator [55.41644538483948]
We theoretically describe the generation of photon pairs in the process of spontaneous parametric down-conversion.
We reveal that highly directional photon-pair generation can be observed utilising the nonlinear Kerker-type effect.
arXiv Detail & Related papers (2020-11-16T10:30:04Z) - Quantum nonlinear metasurfaces [68.8204255655161]
We outline a general quantum theory of spontaneous photon-pair generation in arbitrary nonlinear photonic structures.
We discuss the first experimental results demonstrating photon-pair generation in a single nonlinear nanoantenna.
arXiv Detail & Related papers (2020-08-22T14:57:24Z) - Hyperentanglement in structured quantum light [50.591267188664666]
Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols.
Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes.
We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
arXiv Detail & Related papers (2020-06-02T18:00:04Z)
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.