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We report on an experimental measurement of the pulse front tilt (PFT) of spatiotemporally focused femtosecond laser pulses in the focal plane in both air and bulk transparent materials, which is achieved by examination of the interference…

While optical and radio transient surveys have enjoyed a renaissance over the past decade, the dynamic infrared sky remains virtually unexplored. The infrared is a powerful tool for probing transient events in dusty regions that have high…

Trajectory forecasting in healthcare data has been an important area of research in precision care and clinical integration for computational methods. In recent years, generative AI models have demonstrated promising results in capturing…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Rosemary Y. He , Jeffrey N. Chiang

We have constructed a Fourier-transform spectrometer (FTS) operating between 50 and 330 GHz with minimum volume (355 x260 x64 mm) and weight (13 lbs) while maximizing optical throughput (100 $\mathrm{mm}^2$ sr) and optimizing the spectral…

Instrumentation and Methods for Astrophysics · Physics 2019-09-04 Zhaodi Pan , Mira Liu , Ritoban Basu Thakur , Bradford A. Benson , Dale J. Fixsen , Hazal Goksu , Eleanor Rath , Stephan S. Meyer

This paper deals with the theoretical principle and optical design of a phase-shifting telescope-interferometer. What is called a "Telescope-Interferometer" (T-I) is indeed a novel, recently proposed Wavefront Error (WFE) sensing technique,…

Optics · Physics 2011-05-19 Francois Henault

Both the Rubin Observatory and the first telescopes of the CTAO will be collecting data by 2026, marking a new era in optical and gamma-ray astronomy. Compared to predecessors, their enhanced sensitivity will extend extragalactic…

High Energy Astrophysical Phenomena · Physics 2025-09-26 Julian Hamo , Jonathan Biteau , Julien Peloton

Background and Objective: Vital sign monitoring in the Intensive Care Unit (ICU) is crucial for enabling prompt interventions for patients. This underscores the need for an accurate predictive system. Therefore, this study proposes a novel…

Machine Learning · Computer Science 2024-04-05 Ping Chang , Huayu Li , Stuart F. Quan , Shuyang Lu , Shu-Fen Wung , Janet Roveda , Ao Li

The Zak-transform-based Orthogonal Time Frequency Space (Zak-OTFS), offers a robust framework for high-mobility communications by simplifying the input-output (I/O) relation to a twisted convolution. While this structure theoretically…

Signal Processing · Electrical Eng. & Systems 2026-02-10 Kecheng Zhang , Weijie Yuan , Yonghui Li

One of the potential problems of a Micro-Pattern Gaseous Detector (MPGD)-based Time Projection Chamber (TPC) is the Ion back Flow (IBF): ions generated through the avalanche amplification process flow back to the drift volume of the TPC and…

Instrumentation and Detectors · Physics 2018-12-11 T. Ogawa

We observe a weakly allowed optical transition of atomic ytterbium from the ground state to the metastable state $4f^{13}5d6s^2 \: (J=2)$ for all five bosonic and two fermionic isotopes with resolved Zeeman and hyperfine structures. This…

Atomic Physics · Physics 2023-04-18 Taiki Ishiyama , Koki Ono , Tetsushi Takano , Ayaki Sunaga , Yoshiro Takahashi

The Shack-Hartmann Wavefront Sensor (WFS) is well-known in the fields of optical metrology, wavefront sensing in astronomy, and ophthalmologic control applications. The purpose of this communication is to bring new insights on the…

Instrumentation and Methods for Astrophysics · Physics 2019-09-12 Francois Henault , Cyril Pannetier

We describe the performance of our latest generations of sensitive wide-band high-resolution digital Fast Fourier Transform Spectrometer (FFTS). Their design, optimized for a wide range of radio astronomical applications, is presented.…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 Bernd Klein , Stefan Hochgürtel , Ingo Krämer , Andreas Bell , Klaus Meyer , Rolf Güsten

Pseudo-spectral method is one of the most accurate techniques for simulating turbulent flows. Fast Fourier transform (FFT) is an integral part of this method. In this paper, we present a new procedure to compute FFT in which we save…

Mathematical Software · Computer Science 2014-06-24 A. G. Chatterjee , M. K. Verma , M. Chaudhuri

The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300 A to the sensitivity drop-off of conventional CCDs (9600 A), although a blue `arm' (3700-6500 A) is to be added by the end of 1997.…

Astrophysics · Physics 2015-06-24 J. Bland-Hawthorn , D. H. Jones

The scope of data-driven fault diagnosis models is greatly extended through deep learning (DL). However, the classical convolution and recurrent structure have their defects in computational efficiency and feature representation, while the…

Artificial Intelligence · Computer Science 2021-12-07 Yifei Ding , Minping Jia , Qiuhua Miao , Yudong Cao

The concept of pyramid wavefront sensors (PWFS) has been around about a decade by now. However, there is still a great lack of characterizing measurements that allow the best operation of such a system under real life conditions at an…

Astrophysics · Physics 2009-11-13 D. Peter , M. Feldt , B. Dorner , T. Henning , S. Hippler , J. Aceituno

Most major discoveries in astronomy have come from unplanned discoveries made by surveying the Universe in a new way, rather than by testing a hypothesis or conducting an investigation with planned outcomes. Next generation radio continuum…

Instrumentation and Methods for Astrophysics · Physics 2021-05-27 Evan Crawford , Ray P. Norris , Kai Polsterer

The Arizona-NOAO Temporal Analysis and Response to Events System (ANTARES) is a joint project of the National Optical Astronomy Observatory and the Department of Computer Science at the University of Arizona. The goal is to build the…

Instrumentation and Methods for Astrophysics · Physics 2014-09-02 Abhijit Saha , Thomas Matheson , Richard Snodgrass , John Kececioglu , Gautham Narayan , Robert Seaman , Tim Jenness , Tim Axelrod

To handle the data explosion in the era of internet of things (IoT), it is of interest to investigate the decentralized network, with the aim at relaxing the burden to central server along with keeping data privacy. In this work, we develop…

Signal Processing · Electrical Eng. & Systems 2020-07-28 Yue Xiao , Yu Ye , Shaocheng Huang , Li Hao , Zheng Ma , Ming Xiao , Shahid Mumtaz

The ALICE collaboration is preparing an upgrade of the three innermost layers of the current Inner Tracking System (ITS) during the next LHC long shutdown (LS3). The new ITS detector will use wafer-scale (up to \SI{27}{cm} in length)…

Instrumentation and Detectors · Physics 2026-01-29 Stefania Perciballi
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