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@arXiv_physicsoptics_bot@mastoxiv.page
2025-11-25 09:56:33

Mesh of Spatiotemporal Optical Vortices with Programmable Intensity Nulls
Jinxin Wu, Dan Wang, Qingqing Liang, Jianhua Hu, Jiahao Dong, Jijun Feng, Yi Liu
arxiv.org/abs/2511.18087 arxiv.org/pdf/2511.18087 arxiv.org/html/2511.18087
arXiv:2511.18087v1 Announce Type: new
Abstract: Light carrying transverse orbital angular momentum (T-OAM) in the form of spatiotemporal optical vortices (STOVs) is opening new degrees of freedom for structured light manipulation. Such spatiotemporal wavepackets hold significant potential for optical trapping, analog optical computing, studying photonic symmetry and topology, among others. Up to now, synthesizing of such vortices is limited in one dimension, either in temporal or spatial domain. In this work, we propose and experimentally demonstrate a two-dimensional flexible mesh of spatiotemporal optical vortices (M-STOV) with programmable intensity nulls, and analyze their diffraction patterns for detection. Furthermore, we extend the spectral range of M-STOV via second-harmonic generation while examining the transfer of OAM in this nonlinear process. This study establishes a foundational framework for designing higher dimensional spatiotemporal vortex fields and promises a high-capacity information carrier based on ST optical vortices.
toXiv_bot_toot

@tante@tldr.nettime.org
2025-10-13 10:33:49

Falls jemand hier im Bereich Software Entwicklung / Prototyping unterwegs ist, in Berlin wohnt (oder wohnen wollen würde) und nen Job sucht, wir haben gerade openings. (Nicht nur die explizit ausgeschriebene Junior Stelle, auch Seniors könnten relevant sein) artcom.de/?job_description=jun…

Junior Developer / Creative Technologist (w/m/d)
Für unser Development-Team in Berlin und Köln suchen wir motivierte Junior Developer / Creative Technologists, die mit uns die Grenzen des technisch Machbaren ausloten und Teil unseres interdisziplinären Teams werden. Deine Aufgaben Du arbeitest in einem interdisziplinären Team aus Designer*innen, Künstler*innen und erfahrenen Developer*innen an Forschungs- und Kundenprojekten , die in Museen, Ausstellungen und öffentlichen[···]

@aral@mastodon.ar.al
2025-11-10 10:49:24

“Israeli soldiers have described a free-for-all in Gaza and a breakdown in norms and legal constraints, with civilians killed at the whim of individual officers, according to testimony in a TV documentary.
“If you want to shoot without restraint, you can,” Daniel, the commander of an Israel Defense Forces (IDF) tank unit, says in Breaking Ranks: Inside Israel’s War, due to be broadcast in the UK on ITV on Monday evening.
Some of the IDF soldiers who talked to the programme reques…

Israeli soldiers speak out on killings of Gaza civilians
IDF soldiers tell documentary of opening fire unprovoked and arbitrary designations of who was an enemy

@nemobis@mamot.fr
2025-12-01 07:30:14

From our #cooperative, #MajavanTila: "Membership benefits for 2026".
majavantila.fi/en/posts/…

Membership benefits for 2026
We are happy to announce the official benefits you can get in 2026 by joining us as member of the cooperative. They have been approved by the board of directors (hallitus) of Majavan tila osk on 2025-11-13. Benefits for participant members The benefits for a participant member (osallistujajäsen) in 2026 include: access to the space during public opening hours (if any) and usage of designated shared areas; storage of up to 0,5 m³ of objects in a space designated for members storage; usage of t…

@PaulWermer@sfba.social
2025-11-10 14:22:43

Supporting suspicions:
theguardian.com/world/2025/nov

Israeli soldiers speak out on killings of Gaza civilians
IDF soldiers tell documentary of opening fire unprovoked and arbitrary designations of who was an enemy

@paulwermer@sfba.social
2025-11-10 14:22:43

Supporting suspicions:
theguardian.com/world/2025/nov

Israeli soldiers speak out on killings of Gaza civilians
IDF soldiers tell documentary of opening fire unprovoked and arbitrary designations of who was an enemy

@NFL@darktundra.xyz
2025-12-10 23:31:44

NFL Week 15 injury updates: Key early-week notes and what to watch across every matchup

cbssports.com/nfl/news/nfl-wee

NFL Week 15 injury updates: Key early-week notes and what to watch across every matchup
Here's a look at the opening injury reports, along with game designations for 'Thursday Night Football

@leftsidestory@mstdn.social
2025-11-08 00:30:01

Moody Urbanity - In and Out of the Shadow II 👤
情绪化城市 - 阴影的内外 II 👤
📷 Nikon FE
🎞️ ERA 100, expired 1993
#filmphotography #Photography #blackandwhite

ERA 100 (FF) English Alt Text: A black-and-white photograph of a tiled corridor. A single person walks away from the camera toward a bright opening at the far end, appearing as a dark silhouette against the strong backlight. The figure is slightly blurred, suggesting motion. The corridor walls are dim, with faint text in a non-Latin script visible on the right side. The contrast between the dark passage and the glowing exit creates a dramatic sense of depth, mystery, and anticipation. 中文替代文字：…
ERA 100 (FF) English Alt Text: A black-and-white photograph showing a broken ornate chair in the foreground. The chair’s decorative frame remains, but its seat and parts of the backrest are missing, exposing its inner structure. Behind it, two sculpted busts rest on a pedestal, partially hidden in shadow. The background is dark, contrasting with the illuminated chair. The scene evokes themes of decay, time, and art, with the fragile chair juxtaposed against classical sculptures. 中文替代文字： 一张黑白照…
ERA 100 (FF) English Alt Text: A black-and-white photograph of a storefront display. Inside, a pile of animal costumes or taxidermy figures is stacked together, resembling furry mammals such as bears or raccoons. The arrangement is chaotic, with limbs and faces overlapping. Dim lighting and shadows create an eerie, surreal atmosphere. The tiled floor and glass panels frame the display, while a sign in the background is faintly visible but unreadable. The image feels unsettling and ambiguous, b…
ERA 100 (FF) English Alt Text: A black-and-white photograph of a sidewalk made of rectangular bricks. A concrete block sits on the pavement, casting a sharp shadow. Sunlight filters through tree branches above, creating intricate shadow patterns across the ground. White painted lines and arrows are visible nearby, possibly marking a parking or designated area. The interplay of light, shadow, and geometry gives the scene a striking, abstract quality. 中文替代文字： 一张黑白照片，画面是一条由长方形砖块铺成的人行道。人行道上放置着一个混…
@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-10-08 09:19:09

Confinement-Controlled Morphology and Stability of One-Dimensional CrI3 Nanotubes
Ihsan Caha, Aqrab ul Ahmad, Francis Leonard Deepak
arxiv.org/abs/2510.05889

Confinement-Controlled Morphology and Stability of One-Dimensional CrI3 Nanotubes
Integrating monolayers derived from 2D van der Waals (vdW) magnetic materials into next-generation technological applications remains a significant challenge due to their structural and magnetic instability issues. Template-assisted encapsulation is a potential route for the growth of stable 2D monolayers aimed at designing novel 1D heterostructures, opening new avenues for studying low-dimensional quantum effects and spin-related phenomena. In this study, we explored the diameter-dependent enc…

@leftsidestory@mstdn.social
2025-12-04 00:30:00

Moody Urbanity - Old & New V 🔆
情绪化城市 - 新与旧 V 🔆
📷 Zeiss Ikon Super Ikonta 533/16
🎞️ Ilford HP5 Plus 400, expired 1993
#filmphotography #Photography #blackandwhite

Ilford HP5 Plus 400 (6x6) English Alt Text: A black-and-white photograph of a row of industrial buildings with curved roofs. The architecture features large rectangular windows and circular ventilation openings near the roof peaks. The buildings are made of brick and have a utilitarian design typical of early to mid-20th century factories or warehouses. The image has a historical feel, highlighting the symmetry and functional aesthetics of industrial architecture. 中文替代文字： 这是一张黑白照片，展示了一排屋顶弯曲的工…
Ilford HP5 Plus 400 (6x6) English Alt Text: A black-and-white photograph of a tall monument featuring a statue of a winged horse, likely Pegasus, with a human figure riding it. The rider holds a trident-like object aloft, suggesting themes of mythology or heroism. The statue is mounted on a smooth stone pedestal. In the background, trees and a building with a slanted roof are visible. The sky is clear, and the grainy texture of the photo suggests it was taken with film. The composition emphasi…
Ilford HP5 Plus 400 (6x6) English Alt Text: A black-and-white image of a modern monument in an urban plaza. Atop a tall obelisk-like pedestal stands a statue of a person riding a winged horse, possibly Pegasus, holding an object aloft. To the right, a realistic sculpture of a leaping tiger adds dynamic contrast. Surrounding the monument are modern buildings with large windows and trees. The scene blends classical mythology with contemporary architecture and wildlife art. 中文替代文字： 这是一张黑白照片，展示了城…
Ilford HP5 Plus 400 (6x6) English Alt Text: A black-and-white photo of a bouquet of roses wrapped in paper, placed on a metal railing in an urban setting. Behind the flowers is a brick wall covered in graffiti. A street sign with Chinese characters and an arrow pointing right is partially visible. The characters read “一街,” meaning “First Street.” The contrast between the delicate roses and the gritty urban background evokes a sense of beauty amid decay or sentiment in a harsh environment. 中文替…