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@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-10-02 10:13:21

Three-fold Superstructured Superlattice HfN/HfAlN Thin Films for Enhanced Toughness
M. Lorentzon, R. Hahn, J. Palisaitis, H. Riedl, L. Hultman, J. Birch, N. Ghafoor
arxiv.org/abs/2510.00716

Three-fold Superstructured Superlattice HfN/HfAlN Thin Films for Enhanced Toughness
To simultaneously achieve high hardness and high toughness in protective coatings remains a fundamental challenge. Here, we harness the superlattice architecture to combine Koehler hardening while the coherent interfaces reduce the crack driving force and improve toughness, enabling coatings that are both hard and damage tolerant. We design and fabricate epitaxial HfN$_{1.33}$/Hf$_{0.76}$Al$_{0.24}$N$_{1.15}$ superlattices, deposited on MgO(001) substrates using low-energy, high-flux ion-assist…

@memeorandum@universeodon.com
2025-09-16 13:05:51

Trump administration in damage-control mode after Hyundai immigration raid sparks investment concerns (Dylan Butts/CNBC)
cnbc.com/2025/09/16/trump-dama
memeorandum.com/250916/p43#a25

@usul@piaille.fr
2025-10-17 09:03:30

In the recent ICANN Registrations Operation Workshop 30th September 2025, the
following data was shared about DNSSEC Validation Rates
- Region / Rate / Increase since 2023
- Asia 32% 4%
- Oceania 54% 11%
- Africa 46% 15%
- Americas 37% 4%
- Europe 48% 8%
#dns #dnssec

@leftsidestory@mstdn.social
2025-10-06 00:30:03

Moody Urbanity - Somewhere 🔲
情绪化城市 - 某处 🔲
📷 Nikon FE
🎞️ Lucky SHD 400
#filmphotography #Photography #blackandwhite

Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo of a multi-story building under a partly cloudy sky. The building has several windows and external air conditioning units. A tall rooftop antenna with horizontal elements is visible. The lighting and shadows suggest early morning or late afternoon. 中文替代文字： 这是一张黑白照片，显示一栋多层建筑，背景是部分多云的天空。建筑有多个窗户和外置空调。屋顶上有一个高大的天线，带有水平结构。光影效果显示为清晨或傍晚。
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo of a dense hedge or bush taken from a low angle. The foliage is thick with many small leaves and a few scattered flowers. Some branches extend upward toward a clear sky. The lighting suggests daytime, and the image emphasizes the texture and shape of the vegetation. 中文替代文字： 这是一张黑白照片，从低角度拍摄一片茂密的灌木。画面中有大量小叶子和几朵分散的花朵。部分枝条向上延伸，背景是晴朗的天空。光线显示为白天，画面突出植物的质感和形状。
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo taken inside an art gallery. The main subject is a large abstract sculpture made of thin, curved metal rods arranged in a chaotic, flowing structure. Two people walk past in the background. The gallery has exposed brick walls, large windows, and overhead beams. 中文替代文字： 这是一张在艺术画廊内拍摄的黑白照片。主体是一件由细长弯曲金属杆构成的大型抽象雕塑，结构复杂且具有流动感。背景中有两人走过。画廊内有裸露的砖墙、大窗户和横梁。
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white image of a black car parked on the side of a street in a residential urban neighborhood. Surrounding the car are multi-story apartment buildings with balconies and windows. Trees and utility wires are visible. A metal fence and gate are in the background. The photo is framed by tree branches at the top. 中文替代文字： 这是一张黑白照片，显示一辆黑色汽车停在城市住宅区的街边。周围是多层公寓楼，有阳台和窗户。画面中有树木和电线，背景中可见金属围栏和大门。照片顶部靠树枝进行整个画面的构图。
@arXiv_physicsoptics_bot@mastoxiv.page
2025-10-06 08:31:59

Holographic Gaseous Lenses for High-Power Lasers
Devdigvijay Singh, Ke Ou, Sida Cao, Victor M. Perez-Ramirez, Harsha Rajesh, Debolina Chakraborty, Caleb Redshaw, Pelin Dedeler, Albertine Oudin, Michelle M. Wang, Julia M. Mikhailova, Livia Lancia, Caterina Riconda, Pierre Michel, Matthew R. Edwards
arxiv.org/abs/2510.02659

Holographic Gaseous Lenses for High-Power Lasers
The capabilities of the world's highest energy and peak-power pulsed lasers are limited by optical damage, and further advances in high-intensity laser science will require optics that are substantially more robust than existing components. We describe here the experimental demonstration of off-axis diffractive gaseous lenses capable of withstanding extreme laser fluence and immune to cumulative damage. We used less than 8 mJ of energy from interfering ultraviolet laser pulses to holographicall…