Nanoscale Mechanical Structures Fabricated from Silicon-on-Insulator Substrates

Kavli Affiliate: Michael L. Roukes | First 5 Authors: Andrew N. Cleland, Michael L. Roukes, , , | Summary: We describe a method with which to fabricate sub-micron mechanical structures from silicon-on-insulator substrates. We believe this is the first reported method for such fabrication, and our technique allows for complex, multilayer electron beam lithography to […]


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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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MeshGen: Generating PBR Textured Mesh with Render-Enhanced Auto-Encoder and Generative Data Augmentation

Kavli Affiliate: Feng Wang | First 5 Authors: Zilong Chen, Yikai Wang, Wenqiang Sun, Feng Wang, Yiwen Chen | Summary: In this paper, we introduce MeshGen, an advanced image-to-3D pipeline that generates high-quality 3D meshes with detailed geometry and physically based rendering (PBR) textures. Addressing the challenges faced by existing 3D native diffusion models, such […]


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The True Stellar Obliquity of a Sub-Saturn Planet from the Tierras Observatory and KPF

Kavli Affiliate: David Charbonneau | First 5 Authors: Patrick Tamburo, Samuel W. Yee, Juliana García-Mejía, Gudmundur Stefánsson, David Charbonneau | Summary: We measure the true obliquity of TOI-2364, a K dwarf with a sub-Saturn-mass ($M_p = 0.18,M_J$) transiting planet on the upper edge of the hot Neptune desert. We used new Rossiter-McLaughlin observations gathered with […]


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DexCtrl: Towards Sim-to-Real Dexterity with Adaptive Controller Learning

Kavli Affiliate: Xiang Zhang | First 5 Authors: Shuqi Zhao, Ke Yang, Yuxin Chen, Chenran Li, Yichen Xie | Summary: Dexterous manipulation has seen remarkable progress in recent years, with policies capable of executing many complex and contact-rich tasks in simulation. However, transferring these policies from simulation to real world remains a significant challenge. One […]


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Phonon Induced Energy Relaxation in Quantum Critical Metals

Kavli Affiliate: Debanjan Chowdhury | First 5 Authors: Haoyu Guo, Debanjan Chowdhury, , , | Summary: Metals at the brink of electronic quantum phase transitions display high-temperature superconductivity, competing orders, and unconventional charge transport, revealing strong departures from conventional Fermi liquid behavior. Investigation of these fascinating intertwined phenomena has been at the center of research […]


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Database and deep-learning scalability of anharmonic phonon properties by automated brute-force first-principles calculations

Kavli Affiliate: Zhiting Tian | First 5 Authors: Masato Ohnishi, Tianqi Deng, Pol Torres, Zhihao Xu, Terumasa Tadano | Summary: Understanding the anharmonic phonon properties of crystal compounds — such as phonon lifetimes and thermal conductivities — is essential for investigating and optimizing their thermal transport behaviors. These properties also impact optical, electronic, and magnetic […]


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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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Practical approaches for crystal structure predictions with inpainting generation and universal interatomic potentials

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Peichen Zhong, Xinzhe Dai, Bowen Deng, Gerbrand Ceder, Kristin A. Persson | Summary: We present Crystal Host-Guided Generation (CHGGen), a diffusion-based framework for crystal structure prediction. Unconditional generation with diffusion models demonstrates limited efficacy in identifying symmetric crystals as the unit cell size increases. CHGGen addresses […]


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