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We established a production method of a good millimeter-wave absorber by using a 3D-printed mold. The mold has a periodic pyramid shape, and an absorptive material is filled into the mold. This shape reduces the surface reflection. The…

Instrumentation and Methods for Astrophysics · Physics 2020-01-22 S. Adachi , M. Hattori , F. Kanno , K. Kiuchi , T. Okada , O. Tajima

We propose a novel construction of product codes for high-density magnetic recording based on binary low-density parity check (LDPC) codes and binary image of Reed Solomon (RS) codes. Moreover, two novel algorithms are proposed to decode…

Information Theory · Computer Science 2012-01-06 Vo Tam Van , Seiichi Mita

Particle beam microscopy (PBM) performs nanoscale imaging by pixelwise capture of scalar values representing noisy measurements of the response from secondary electrons (SEs) integrated over a dwell time. Extended to metrology, goals…

Data Analysis, Statistics and Probability · Physics 2023-08-15 Akshay Agarwal , Minxu Peng , Vivek K. Goyal

Large DNNs with mixed-precision quantization can achieve ultra-high compression while retaining high classification performance. However, because of the challenges in finding an accurate metric that can guide the optimization process, these…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Souvik Kundu , Shikai Wang , Qirui Sun , Peter A. Beerel , Massoud Pedram

Raman spectroscopy is an important tool for studies of molecules, liquids and solids. While Raman spectra can be obtained theoretically from molecular dynamics (MD) simulations, this requires the calculation of the electronic polarizability…

Materials Science · Physics 2025-01-22 Atanu Paul , Nagaprasad Reddy Samala , Ilya Grinberg

This paper introduces weighted-BMP, a variant of the Bandwidth Minimization Problem (BMP), with a significant application in optimizing quantum emulation. Weighted-BMP optimizes particles ordering to reduce the emulation costs, by designing…

Three-dimensional magnetic recording (3DMR) is a highly promising approach to achieving ultra-large data storage capacity in hard disk drives. One of the greatest challenges for 3DMR lies in performing sequential and correct writing of bits…

Hardware Architecture · Computer Science 2025-01-29 Yugen Jian , Ke Luo , Jincai Chen , Xuanyao Fong

The idea of media-based modulation (MBM) is to embed information in the channel states via intentional perturbations of the transmission media. This article covers a broad range of topics regarding MBM, expanding on its benefits and…

Information Theory · Computer Science 2022-11-15 Ehsan Seifi , Amir K. Khandani , Mehran Atamanesh

Biphotons from spontaneous parametric down conversion with broad bandwidth are highly wanted in many quantum technologies. However, achieving broad bandwidth in both frequency and momentum while keeping a high rate remains a challenge for…

In this paper, we present the first structural binarization method for LLM compression to less than 1-bit precision. Although LLMs have achieved remarkable performance, their memory-bound nature during the inference stage hinders the…

Machine Learning · Computer Science 2024-10-10 Peijie Dong , Lujun Li , Yuedong Zhong , Dayou Du , Ruibo Fan , Yuhan Chen , Zhenheng Tang , Qiang Wang , Wei Xue , Yike Guo , Xiaowen Chu

The underlying symmetry of the crystal, electronic structure, and magnetic structure manifests itself in the anisotropy of materials' properties, which is a central topic of the present condensed matter research. However, it demands such a…

Materials Science · Physics 2025-10-10 Kosuke Noda , Kenta Seki , Dilip Bhoi , Kazuyuki Matsubayashi , Kazuto Akiba , Akihiko Ikeda

The comprehensive simulation of magnetic recording, including the write and read-back process, on granular media becomes computationally expensive if the magnetization dynamics of each grain are explicitly computed. In addition, in…

Applied Physics · Physics 2019-11-26 Florian Slanovc , Christoph Vogler , Olivia Muthsam , Dieter Suess

We optimize the recording medium for heat-assisted magnetic recording by using a high/low $T_{\mathrm{c}}$ bilayer structure to reduce AC and DC noise. Compared to a former work, small Gilbert damping $\alpha=0.02$ is considered for the…

Applied Physics · Physics 2019-10-23 Olivia Muthsam , Florian Slanovc , Christoph Vogler , Dieter Suess

Improving resolution and sensitivity will widen possible medical applications of magnetic particle imaging. Pulsed excitation promises such benefits, at the cost of more complex hardware solutions and restrictions on drive field amplitude…

The two-dimensional magnetic recording (TDMR) technology promises storage densities of $10$ terabits per square inch. However, when tracks are squeezed together, a bit stored in the two-dimensional (TD) grid suffers inter-symbol…

Information Theory · Computer Science 2021-02-03 Beyza Dabak , Ahmed Hareedy , Robert Calderbank

In recent years high-resolution 3D printing has enabled a diverse range of new, low-cost, methods for ultrasonic wave-front shaping. Acoustic holograms, particularly, allow for the generation of arbitrary, diffraction limited, acoustic…

Medical Physics · Physics 2022-09-07 Michael D. Brown , Ben T. Cox , Bradley E. Treeby

Biosensing with ferromagnet-based magnetoresistive devices has been dominated by electrical detection of particle-induced changes to the devices' static magnetic configuration. There are however potential advantages to be gained from using…

To store information at extremely high-density and data-rate, we propose to adapt, integrate, and extend the techniques developed by chemists and molecular biologists for the purpose of manipulating biological and other macromolecules. In…

Emerging Technologies · Computer Science 2017-08-29 M. Mansuripur , P. K. Khulbe , S. M. Kuebler , J. W. Perry , M. S. Giridhar , J. Kevin Erwin , Kibyung Seong , Seth Marder , N. Peyghambarian

We propose a compressive yet effective mesh representation, Blocked and Patchified Tokenization (BPT), facilitating the generation of meshes exceeding 8k faces. BPT compresses mesh sequences by employing block-wise indexing and patch…

It is assumed that heat-assisted magnetic recording (HAMR) is the recording technique of the future. For pure hard magnetic grains in high density media with an average diameter of $5$nm and a height of $10$nm the switching probability is…

Materials Science · Physics 2018-01-17 Olivia Muthsam , Christoph Vogler , Dieter Suess