High-frequency traveling-wave phononic cavity with sub-micron wavelength

Xu, Xin-Biao; Wang, Jia-Qi; Yang, Yuan-Hao; Wang, Wei‐Ting; Zhang, Yanlei; Wang, Baozhen; Dong, Chun‐Hua; Sun, Luyan; Guo, Guang‐Can; Zou, Chang‐Ling

doi:10.1063/5.0086751

Cited by 18 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the fabrication-imperfectioninduced scattering loss is the dominant loss mechanism, the measured Q of the BIC grating is lower than the theoretical prediction based on simulations of a few unit cells 10,11,30 . The high-aspect ratio, high GHz frequency (and thus short wavelength), and the lossy continuum also make the BIC phononic crystal grating more prone to scattering losses, as compared with other unreleased mechanical resonators using modes under the sound cone 8,[18][19][20] .…”

Section: Experimental Demonstrationsmentioning

confidence: 99%

Merging mechanical bound states in the continuum in high-aspect-ratio phononic crystal gratings

Tong,

Liu,

Fang

2024

Commun Phys

View full text Add to dashboard Cite

Mechanical bound states in the continuum (BICs) present an alternative avenue for developing high-frequency, high-Q mechanical resonators, distinct from the conventional band structure engineering method. While symmetry-protected mechanical BICs have been realized in phononic crystals, the observation of accidental mechanical BICs—whose existence is independent of mode symmetry and tunable by structural parameters—has remained elusive. This challenge is primarily attributed to the additional radiation channel introduced by the longitudinal component of elastic waves. Here, we employ a coupled wave theory to predict and experimentally demonstrate mechanical accidental BICs within a high-aspect-ratio gallium arsenide phononic crystal grating. We observe the merging process of accidental BICs with symmetry-protected BICs, resulting in reduced acoustic radiation losses compared to isolated BICs. This finding opens up new possibilities for phonon trapping using BIC-based systems, with potential applications in sensing, transduction, and quantum measurements.

show abstract

Section: Experimental Demonstrationsmentioning

confidence: 99%

Merging mechanical bound states in the continuum in high-aspect-ratio phononic crystal gratings

Tong,

Liu,

Fang

2024

Commun Phys

View full text Add to dashboard Cite

show abstract

“…The platform is made of GaN microrings and waveguides on a sapphire substrate, which is transparent to visible light. Such a platform has been extensively studied over the past decades, showing its excel- lent optical properties in visible wavelengths [31][32][33][34][35] and also its potential in photonic integrated circuits [36,37]. Distinct from the conventional platforms for photon-atom interaction on a silicon substrate, all the photonic microstructures in our system are fabricated on the substrate, without any suspended structure or any fabrication procession of the substrate.…”

Section: The Platform For Hybrid Photon-atom Circuitmentioning

confidence: 99%

Proposal for stable atom trapping on a GaN-on-Sapphire chip

Liu,

Xu,

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

The hybrid photon-atom integrated circuits, which include photonic microcavities and trapped single neutral atom in their evanescent field, are of great potential for quantum information processing. In this platform, the atoms provide the single-photon nonlinearity and long-lived memory, which are complementary to the excellent passive photonics devices in conventional quantum photonic circuits. In this work, we propose a stable platform for realizing the hybrid photon-atom circuits based on an unsuspended photonic chip. By introducing highorder modes in the microring, a feasible evanescent-field trap potential well ∼ 0.3 mK could be obtained by only 10 mW-level power in the cavity, compared with 100 mW-level power required in the scheme based on fundamental modes. Based on our scheme, stable single atom trapping with relatively low laser power is feasible for future studies on high-fidelity quantum gates, single-photon sources, as well as many-body quantum physics based on a controllable atom array in a microcavity.

show abstract

Exploring Trends and Opportunities in Quantum‐Enhanced Advanced Photonic Illumination Technologies

Taha,

Addie,

Haider

et al. 2024

Adv Quantum Tech

View full text Add to dashboard Cite

The development of quantum‐enabled photonic technologies has opened new avenues for advanced illumination across diverse fields, including sensing, computing, materials, and integration. This review highlights how Quantum‐enhanced sensing and imaging exploit nonclassical correlations to attain unprecedented accuracy in chaotic environments. As well as guaranteeing secure communications, quantum cryptography, protected by physical principles, ensures unbreakable cryptographic key exchange. As quantum computing speed increases exponentially, previously unimplementable uses for classical computers become feasible. On‐chip integration enables the mass production of quantum photonic components for pervasive applications by facilitating miniaturization and scalability. A powerful and flexible platform is produced when classical and quantum systems are combined. Quantum spin liquids and other topological materials can maintain their quantum states while subject to decoherence. Despite challenges with decoherence, production, and commercialization, quantum photonics is an exciting new area of study that promises lighting techniques impossible with conventional optics. To realize this promise, researchers from several fields must work together to solve complex technical problems and decode fundamental physics. Finally, advances in quantum‐enabled photonics have the potential to evolve quantum photonic devices and cutting‐edge imaging methods and usher in a new age of lighting options based on quantum dots.

show abstract

High-frequency traveling-wave phononic cavity with sub-micron wavelength

Cited by 18 publications

References 28 publications

Merging mechanical bound states in the continuum in high-aspect-ratio phononic crystal gratings

Merging mechanical bound states in the continuum in high-aspect-ratio phononic crystal gratings

Proposal for stable atom trapping on a GaN-on-Sapphire chip

Exploring Trends and Opportunities in Quantum‐Enhanced Advanced Photonic Illumination Technologies

Contact Info

Product

Resources

About