Spalled barium titanate single crystal thin films for functional device applications

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Prachi Thureja, Andrew W. Nyholm, Martin Thomaschewski, Phillip R. Jahelka, Julie Belleville | Summary: We report a scalable approach for fabricating single-crystal barium titanate (BTO) thin films through spalling from bulk substrates. Conventional thin film growth techniques often face challenges in achieving high-quality single crystal microstructure […]


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RapidPIV: Full Flow-Field kHz PIV for Real-Time Display and Control

Kavli Affiliate: Morteza Gharib | First 5 Authors: Scott A. Bollt, Samuel H. Foxman, Morteza Gharib, , | Summary: We present a novel architecture for accelerating PIV calculations. An optical flow hardware accelerator does the brunt of the work, with cross-correlation only providing quick corrections. The result is RapidPIV: a free-to-download software program for real-time […]


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Efficient and wavelength-tunable second-harmonic generation towards the green gap

Kavli Affiliate: Kerry Vahala | First 5 Authors: Zhiquan Yuan, Jinhao Ge, Peng Liu, Bohan Li, Mingxiao Li | Summary: Achieving compact and efficient visible laser sources is crucial for a wide range of applications. However traditional semiconductor laser technology faces difficulties in producing high-brightness green light, leaving a green gap in wavelength coverage. Second-harmonic […]


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Analytic Fourier ptychotomography for volumetric refractive index imaging

Kavli Affiliate: Changhuei Yang | First 5 Authors: Zhenyu Dong, Haowen Zhou, Ruizhi Cao, Oumeng Zhang, Shi Zhao | Summary: Three-dimensional (3D) refractive index (RI) tomography offers label-free, quantitative volumetric imaging but faces limitations due to optical aberrations, limited resolution, and the computational complexity inherent to existing approaches. To overcome these barriers, we propose Analytic […]


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Rotational ultrasound and photoacoustic tomography of the human body

Kavli Affiliate: Lihong V. Wang | First 5 Authors: Yang Zhang, Shuai Na, Jonathan J. Russin, Karteekeya Sastry, Li Lin | Summary: Imaging the human body’s morphological and angiographic information is essential for diagnosing, monitoring, and treating medical conditions. Ultrasonography performs the morphological assessment of the soft tissue based on acoustic impedance variations, whereas photoacoustic […]


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Never Start from Scratch: Expediting On-Device LLM Personalization via Explainable Model Selection

Kavli Affiliate: Wei Gao | First 5 Authors: Haoming Wang, Boyuan Yang, Xiangyu Yin, Wei Gao, | Summary: Personalization of Large Language Models (LLMs) is important in practical applications to accommodate the individual needs of different mobile users. Due to data privacy concerns, LLM personalization often needs to be locally done at the user’s mobile […]


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Sub-second spin and lifetime-limited optical coherences in $^{171}$Yb$^{3+}$:CaWO$_4$

Kavli Affiliate: Andrei Faraon | First 5 Authors: Alexey Tiranov, Emanuel Green, Sophie Hermans, Erin Liu, Federico Chiossi | Summary: Optically addressable solid-state spins have been extensively studied for quantum technologies, offering unique advantages for quantum computing, communication, and sensing. Advancing these applications is generally limited by finding materials that simultaneously provide lifetime-limited optical and […]


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Rethinking Key-Value Cache Compression Techniques for Large Language Model Serving

Kavli Affiliate: Wei Gao | First 5 Authors: Wei Gao, Xinyu Zhou, Peng Sun, Tianwei Zhang, Yonggang Wen | Summary: Key-Value cache (texttt{KV} texttt{cache}) compression has emerged as a promising technique to optimize Large Language Model (LLM) serving. It primarily decreases the memory consumption of texttt{KV} texttt{cache} to reduce the computation cost. Despite the development […]


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The Potential of the SPHEREx Mission for Characterizing PAH 3.3 μm Emission in Nearby Galaxies

Kavli Affiliate: James J. Bock | First 5 Authors: Edward Zhang, Andreas L. Faisst, Brendan Crill, Hanae Inami, Thomas Lai | Summary: Dust is a key galaxy component together with gas, stars, and central supermassive black holes, playing a crucial role in stellar and galaxy evolution. Hence, it is critical to understand galaxies’ dust content […]


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Structure and Melting of Fe, MgO, SiO2, and MgSiO3 in Planets: Database, Inversion, and Phase Diagram

Kavli Affiliate: Paul D. Asimow | First 5 Authors: Junjie Dong, Gabriel-Darius Mardaru, Paul D. Asimow, Lars P. Stixrude, Rebecca A. Fischer | Summary: We present globally inverted pressure-temperature (P-T) phase diagrams up to 5,000 GPa for four fundamental planetary materials, Fe, MgO, SiO2, and MgSiO3, derived from logistic regression and supervised learning, together with […]


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