AI Article Synopsis
- This paper discusses the development of a high-quality AlN Lamb-wave resonator (LWR) with optimized design features to improve its performance and spectral purity.
- The optimization involved adjusting the width of the lateral reflection boundary to reduce unwanted transverse mode coupling, verified through simulations and experiments.
- Results showed impressive quality factor values of 4019.8 and 839.5 for different resonant modes, alongside an analysis of how the metal ratio and material of the IDT electrodes affect device performance.
Article Abstract
This paper presents a high quality-factor () and spectrum-clean AlN Lamb-wave resonator (LWR). The width of its lateral reflection boundary was optimized to weaken the transverse modes' coupling and wave guiding, and then to improve the LWR's value and spectral purity, which was verified by finite element analysis and experimental characterization. In addition, the series resonance quality factor () value of the interdigitated (IDT)-Ground LWR is similar to that of the IDT-Floating LWR, but its parallel resonance quality factor () is nearly doubled, due to the reduction of the electrical loss induced by its static capacitance (). The measured results show that the designed LWR with optimized boundary reflection conditions and IDT-Ground structure exhibit and values as high as 4019.8 and 839.5 at 401.2 MHz and 402.9 MHz, respectively, meanwhile, it has good spectral purity. Moreover, the influence of the metal ratio and material of the LWR's IDT electrodes on the device's performance was also studied by theoretical analysis and experimental verification.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9144301 | PMC |
| http://dx.doi.org/10.3390/mi13050779 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
L. (purslane) extract ameliorates intestinal inflammation in diet-induced obese mice by inhibiting the TLR4/NF-κB signaling pathway.
Front Pharmacol
January 2025
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China.
Background: L. (purslane) is a dietary plant and a botanical drug with antioxidant, antidiabetic, and anti-inflammatory activities. However, the effects of purslane against intestinal-inflammation-associated obesity are yet to be studied.
View Article and Find Full Text PDFA fast monocular 6D pose estimation method for textureless objects based on perceptual hashing and template matching.
Front Robot AI
January 2025
Department of Materials and Production, Aalborg University, Aalborg, Denmark.
Object pose estimation is essential for computer vision applications such as quality inspection, robotic bin picking, and warehouse logistics. However, this task often requires expensive equipment such as 3D cameras or Lidar sensors, as well as significant computational resources. Many state-of-the-art methods for 6D pose estimation depend on deep neural networks, which are computationally demanding and require GPUs for real-time performance.
View Article and Find Full Text PDFThe Darwin Tree of Life (DToL) project aims to generate high-quality reference genomes for all eukaryotic organisms in Britain and Ireland. At the time of writing, PacBio HiFi reads are generated for all samples using the Sequel IIe systems by the Wellcome Sanger Institute's Scientific Operations teams, however we expect lessons from this work to apply directly to the Revio system too, as core principles of SMRT sequencing remain the same. We observed that HiFi yield is highly variable for DToL samples.
View Article and Find Full Text PDFEnhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr Quantum Dots Using a High- Microdisk Cavity.
J Phys Chem Lett
January 2025
State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China.
Perovskite quantum dots (QDs) are high-efficiency optoelectronic materials attracting great interest, but further improvement in the luminescence efficiency is crucial for their application. In this work, we enhance both the spontaneous emission rate and the photoluminescence (PL) intensity of CsPbBr QDs by coupling them to a high quality () factor SiO microdisk cavity. Compared to conventional metal plasmonic cavities, the dielectric cavity structure suppresses the effects of quenching and energy transfer, which could introduce complex fluctuations and nonradiative decays.
View Article and Find Full Text PDFCurrent developments in robotic assistance technology for total knee arthroplasty: a comprehensive overview.
J Orthop Surg Res
January 2025
Department of Orthopedic, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, Zhejiang, China.
Knee arthritis is a common degenerative joint disease, usually with joint swelling, chronic pain, and dysfunction as the main clinical manifestations. At present, the conservative treatment for knee arthritis is mostly using anti-inflammatory and analgesic drugs, but the effect is mostly temporary, and can not prevent its progress and surgery is usually the last treatment method. Total knee arthroplasty, also known as TKA, is one of the most effective treatments for osteoarthritis of the knee that has progressed to the end stage.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!