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The prospect of ultra-massive multiple-input multiple-output (UM-MIMO) technology to combat the distance problem at the Terahertz (THz)-band is considered. It is well-known that the very large available bandwidths at THz frequencies come at…

Signal Processing · Electrical Eng. & Systems 2019-07-16 Hadi Sarieddeen , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Using reflective cross-polarized 2D THz time-domain spectroscopy in the range of 1-12 THz, we follow the trajectory of the out-of-equilibrium electron population in the low-bandgap semiconductor InSb. The 2D THz spectra show a set of…

Strongly Correlated Electrons · Physics 2019-06-10 S. Houver , L. Huber , M. Savoini , E. Abreu , S. L. Johnson

THz time domain spectroscopy is a powerful technique enabling the investigation of different materials in the far-infrared frequency range. Even if nowadays this technique is well established, its application to very thin films remains…

Instrumentation and Detectors · Physics 2024-06-07 A. Taschin , P. Bartolini , J. Tasseva , R. Torre

The operation of resistive and phase-change memory (RRAM and PCM) is controlled by highly localized self-heating effects, yet detailed studies of their temperature are rare due to challenges of nanoscale thermometry. Here we show that the…

Laser-induced Terahertz (THz) Emission Spectroscopy (TES) has demonstrated its potential utility in the realm of Metal-Oxide-Semiconductor (MOS) devices as an expedient and noncontact estimation methodology. Owing to its discerning response…

Applied Physics · Physics 2025-05-01 Dongxun Yang , Tonouchi Masayoshi

The plasma wave instabilities in ballistic Field Effect Transistors (FETs) have a promise of developing sensitive THz detectors and efficient THz sources. One of the difficulties in achieving efficient resonant plasmonic detection and…

Applied Physics · Physics 2019-02-20 G. R. Aizin , J. Mikalopas , M. Shur

Scanning Thermal Microscopy (SThM) uses micromachined thermal sensors integrated in a force sensing cantilever with a nanoscale tip can be highly useful for exploration of thermal management of nanoscale semiconductor devices. As well as…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 P. Tovee , M. Pumarol , D. Zeze , Kevin Kjoller , O. Kolosov

Efficient thermal management is critical for cryogenic CMOS circuits, where local heating can compromise device performance and qubit coherence. Understanding heat flow at the nanoscale in these multilayer architectures requires localized,…

This article addresses gaps in definitions and a lack of standard measurement techniques to assess the spatial resolution in atom probe tomography. This resolution is known to be anisotropic, being better in the depth than laterally.…

The characterization of nanostructured surfaces with sensitivity in the sub-nm range is of high importance for the development of current and next generation integrated electronic circuits. Modern transistor architectures for e.g. FinFETs…

A spectrometer based on silicon nanosandwiches (SNS) is proposed for problems of personalized medicine. SNS structures exhibit properties of terahertz (THz) emitter and receiver of the THz response of biological tissue. Measurements of the…

Medical Physics · Physics 2020-12-04 N. T. Bagraev , L. E. Klyachkin , A. M. Malyarenko , K. B. Taranets

We consider the carrier transport and plasmonic phenomena in the lateral carbon nanotube (CNT) networks forming the device channel with asymmetric electrodes. One electrode is the Ohmic contact to the CNT network and the another contact is…

Mesoscale and Nanoscale Physics · Physics 2016-08-03 V. Ryzhii , T. Otsuji , M. Ryzhii , V. G. Leiman , G. Fedorov , G. N. Goltzman , I. A. Gayduchenko , N. Titova , D. Coquillat , D. But , W. Knap , V. Mitin , M. S. Shur

Nanoscale devices with Terahertz (THz) communication capabilities are envisioned to be deployed within human bloodstreams. Such devices will enable fine-grained sensing-based applications for detecting early indications (i.e., biomarkers)…

Terahertz (THz) extremely large-scale MIMO (XL-MIMO) is considered a key enabling technology for 6G and beyond due to its advantages such as wide bandwidth and high beam gain. As the frequency and array size increase, users are more likely…

Signal Processing · Electrical Eng. & Systems 2025-05-15 Huixin Xu , Jianhua Zhang , Pan Tang , Hongbo Xing , Chong Han , Lei Tian , Qixing Wang , Guangyi Liu

Charge distribution offers a unique fingerprint of important properties of electronic systems, including dielectric response, charge ordering and charge fractionalization. We develop a new architecture for charge sensing in two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2025-12-05 Cheng-Li Chiu , Taige Wang , Ruihua Fan , Kenji Watanabe , Takashi Taniguchi , Xiaomeng Liu , Michael P. Zaletel , Ali Yazdani

Low dimensional nano-systems are promising candidates for manipulating, controlling and capturing photons with large sensitivities and low-noise. If quantum engineered to tailor the energy of the localized electrons across the desired…

The ability to measure polarisation, spectrum, temporal dynamics, and spatial amplitude and phase of optical beams is essential to study fundamental phenomena in laser dynamics, telecommunications and nonlinear optics. Current…

Many modern spintronic technologies, such as spin valves, spin Hall applications, and spintronic THz emitters, are based on electrons crossing buried internal interfaces within metallic nanostructures. However, the complex current pathways…

Mesoscale and Nanoscale Physics · Physics 2022-11-24 Nicolas S. Beermann , Savio Fabretti , Karsten Rott , Hassan A. Hafez , Günter Reiss , Dmitry Turchinovich

The Hamiltonian size reduction method or the mode space method applicable to general heterogeneous structures is developed in this work. The effectiveness and accuracy of the method are demonstrated for four example devices of GaSb/InAs…

Mesoscale and Nanoscale Physics · Physics 2021-09-20 Mincheol Shin

We have realized a microstrip based THz near field cantilever which enables quantitative measurements of the impedance of the probe tip at THz frequencies (0.3 THz). A key feature is the on-chip balanced hybrid coupler which serves as an…