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@arXiv_physicsoptics_bot@mastoxiv.page
2025-07-02 09:25:39

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Esteban Marulanda, Fernanda L. Costa, Nicolas M. Kawahala, Felix G. G. Hernandez
arxiv.org/abs/2507.00729

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Terahertz time-domain spectroscopy (THz-TDS) has become a powerful tool for investigating the optical properties of thin films, offering direct access to the complex permittivity in the terahertz range. However, in transmission-based measurements of thin films on thick substrates, multiple reflections and limited time windows can introduce artifacts that obscure resonant features such as phonon modes. Time-domain windowing is widely employed to mitigate these effects, yet systematic guidelines …

@nemorosa@mastodon.nu
2025-05-30 08:28:05

#WritersCoffeeClub May 30. Who do you write for?
Me.
Or, the one I was when I discovered the thrill of thick, epic books with long adventures. I am still that person, just a little more pressed for time.

@nemorosa@mastodon.nu
2025-05-30 08:28:05

#WritersCoffeeClub May 30. Who do you write for?
Me.
Or, the one I was when I discovered the thrill of thick, epic books with long adventures. I am still that person, just a little more pressed for time.

@arXiv_physicsinsdet_bot@mastoxiv.page
2025-05-30 07:34:56

Innovative DC-coupled Resistive Silicon Detector for 4D tracking
R. Arcidiacono, G. Bardelli, M. Bartolini, M. Boscardin, N. Cartiglia, A. Cassese, M. Centis Vignali, T. Croci, M. Ferrero, A. Fondacci, O. Hammad Ali, M. Lizzo, L. Menzio, A. Morozzi, F. Moscatelli, D. Passeri, G. Paternoster, G. Sguazzoni, F. Siviero, V. Sola, L. Viliani

Innovative DC-coupled Resistive Silicon Detector for 4D tracking
In the past 10 years, two design innovations, the introduction of low internal gain (LGAD) and of resistive read-out (RSD), have radically changed the performance of silicon detectors. The LGAD mechanism, increasing the signal-to-noise ratio by about a factor of 20, leads to improved time resolution (typically 30 ps for a 50-$μ$m thick sensor), while resistive read-out, sharing the collected charge among read-out electrodes, leads to excellent spatial resolution even using large pixels (about …

@midtsveen@social.linux.pizza
2025-06-12 18:51:56

Soon, I’ll be throwing away all my desktop computers as well, though I’m keeping my Lenovo Thinkpad around. I hate computers, yet I use them.
To me, computers are just junk nobody asked for. They’re glowing traps that keep us hooked, scrolling and clicking away our time for endless feeds. No matter the OS or hardware, it’s all distraction from reality.
Yes, Linux can free us and all that, and even the hardware can be part of that freedom. But the computers themselves remain a cir…

The image depicts a street scene with a car engulfed in flames, emitting thick black smoke. The car is covered in graffiti, including the words "Fuck Police" and "Anarchist." In the foreground, a person is seen riding a bicycle with a large wheel, wearing a mask. The background shows additional vehicles on fire, with people gathered around, some appearing to be observing the scene. The date "Jun 12" is visible at the topt. In the lower right corner, there is a screenshot of a computer terminal …
@midtsveen@social.linux.pizza
2025-06-13 19:59:11
Content warning: Spiders and Titanic: The Oddest Pairing You Didn’t See Coming

Warning for anyone scared of spiders or the Titanic wreck!
Spiders used to terrify me so much I couldn’t even sleep. I overcame it by doing what they call exposure therapy, just googling spiders and looking at pictures until it felt less scary. Now, I actually want to own a tarantula as a pet, which is kind of funny.
Something I’m even more scared of is the Titanic wreckage. It’s a oddly specific weird fear, but I think it’s a specific kind of Submechanophobia, where the fear is …

Close-up macro photo of a jumping spider on a bright green leaf. The spider’s body is covered in fine light-brown and grey hairs, giving it a fuzzy look. Its large, iridescent purple and red jaws stand out, facing forward. Two big, bright green eyes add an almost alien appearance. The spider’s thick, hairy legs have dark tips. The background is softly blurred green and blue, focusing attention on the spider’s detailed features. The image shows the spider’s beauty up close without being threaten…
The photograph shows a section of the wrecked RMS Titanic on the ocean floor, focusing on rusted and corroded railings and deck structures. Marine growth like sea anemones, sponges, and small white invertebrates cover the metal, creating a textured surface in rusty orange, brown, and grey-white tones. The railing is twisted and broken, with a dark sea fan-like organism attached. The scene is dark and somber, surrounded by deep ocean gloom. It evokes a strong sense of decay, time passing, and n…
@arXiv_physicsinsdet_bot@mastoxiv.page
2025-06-18 10:03:36

Development of non amplified Depleted MAPS sensors towards 50 ps timing resolution on charged particles
Raimon Casanova, Yavuz Degerli, Yujing Gan, Sebastian Grinstein, Fabrice Guilloux, Tomasz Hemperek, G. Huang, Jean-Pierre Meyer, Philippe Schwemling
arxiv.org/abs/2506.13999

Development of non amplified Depleted MAPS sensors towards 50 ps timing resolution on charged particles
The MiniCactus sensors are demonstrator sensors designed in LFoundry LF15A 150 nm technology, intended to study the performance of non amplified High Voltage High Resistivity CMOS sensors for measurement of time of arrival of charged particles. This paper presents the context, design features and some of the first test-beam results obtained with the latest MiniCactus sensor version, MiniCactus V2. With a 175 micron thick sensor biased at -350 V, we have obtained a 60 ps time resolution on Minim…