Tootfinder

A lot of what I’m archiving has like 0 hits but I just know sometime, someone, maybe in a hundred years from now, will find it useful.
It’s a nice feeling to have contributed just a little to preserving our cultural artifacts.

Controlled nucleation in methylamine-treated perovskite films by artificial seeding and phase-field simulations
Emilia R. Sch\"utz, Martin Majewski, Olivier J. J. Ronsin, Jens Harting, Lukas Schmidt-Mende
https://arxiv.org/abs/2511.21407

Graphene and thin graphite films for ultrafast optical Kerr gating at 1 GHz repetition rate under focused illumination
Amr Farrag, Assegid M. Flatae, Mario Agio
https://arxiv.org/abs/2511.17713 https://arxiv.org/pdf/2511.17713 https://arxiv.org/html/2511.17713
arXiv:2511.17713v1 Announce Type: new
Abstract: The ability to address sub-picosecond events of weak optical signals is essential for progress in quantum science, nonlinear optics, and ultrafast spectroscopy. While up-conversion and optical Kerr gating (OKG) offer femtosecond resolution, they are generally limited to ensemble measurements, making ultrafast detection in nano-optics challenging. OKG, with its broadband response and high throughput without phase-matching, is especially promising when used at high repetition rates under focused illumination.
Here, we demonstrate an ultrafast detection scheme using the third-order nonlinearity of graphene and thin graphite films, operating at 1 GHz with sub-nanojoule pulses and achieving 141 fs temporal resolution. Their exceptionally large nonlinear refractive index, orders of magnitude higher than conventional Kerr media, enhances detection efficiency at smaller thicknesses, enables sub-picosecond response, and supports broadband operation. Their atomic-scale thickness minimizes dispersion and simplifies integration with microscopy platforms, optical fibers, and nanophotonic circuits, making them a compact, practical material platform for nano-optical and on-chip ultrafast Kerr gating.
toXiv_bot_toot

Holy moly, Anna's Archive hat Spotify gescraped und archiviert: ~ 300 TiB
https://annas-archive.org/blog/backing-up-spotify.html
Alleine die Datenbank mit allen Metadaten ist schon 200 GiB und wird munter via Torrent geteilt

Estimating Spatially Resolved Radiation Fields Using Neural Networks
Felix Lehner, Pasquale Lombardo, Susana Castillo, Oliver Hupe, Marcus Magnor
https://arxiv.org/abs/2512.17654 https://arxiv.org/pdf/2512.17654 https://arxiv.org/html/2512.17654
arXiv:2512.17654v1 Announce Type: new
Abstract: We present an in-depth analysis on how to build and train neural networks to estimate the spatial distribution of scattered radiation fields for radiation protection dosimetry in medical radiation fields, such as those found in Interventional Radiology and Cardiology. Therefore, we present three different synthetically generated datasets with increasing complexity for training, using a Monte-Carlo Simulation application based on Geant4. On those datasets, we evaluate convolutional and fully connected architectures of neural networks to demonstrate which design decisions work well for reconstructing the fluence and spectra distributions over the spatial domain of such radiation fields. All used datasets as well as our training pipeline are published as open source in separate repositories.
toXiv_bot_toot

Merry Christmas. Thanks for following. Whether it was a fancy hat, or the latest home computer, hope you got what you wanted.

Hope whoever wanted copies of that scrape Anna's Archive did of Spotify (reminder: Spotify began with pirated files, pays artists little to nothing, and funds military tech) has grabbed it already or is grabbing it now.
https://torrentfreak.com/u-s-court-ord

The @… is down, and nobody knows why
#archive #archiveorgdown

Het onderstaande beeld zie je in heel veel Amerikaanse films, met naar mijn idee ontspoorde wetsdienaren. Zo langzamerhand realiseer ik me dat dat land op die manier is georganiseerd en dat de rechtsstaat een nog veel dunner vernislaagje is dan bij ons.
Wat sheriff Tillman uit Fargo ons leert over Trump: ‘De wet ben ik’ |…
https://archive.ph/HqwU…

3 drones reportedly spotted flying over Belgian nuclear power plant: https://benborges.xyz/2025/11/10/drones-reportedly-spotted-flying-over.html