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Terahertz two-dimensional coherent spectroscopy (THz-2DCS) is transforming our ability to probe, visualize, and control quantum materials far from equilibrium. This emerging technique brings multi-dimensional resolution to the ultrafast…

Superconductivity · Physics 2026-02-09 Chuankun Huang , Martin Mootz , Liang Luo , Ilias E. Perakis , Jigang Wang

Superconducting resonators enable fast characterization and readout of mesoscopic quantum devices. Finding ways to perform measurements of interest on such devices using resonators only is therefore of great practical relevance. We report…

Our results demonstrate a new method for label-free, real-time oligonucleotide characterisation by their self-resonant modes, which are unique to their conformation and sequence. We anticipate that our assay will be used as a starting point…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 Andrey L. Chernev , Nicolay T. Bagraev , Leonid E. Klyachkin , Anton K. Emelyanov , Michael V. Dubina

Plasmonic bowtie antennas made of doped silicon can operate as plasmonic resonators at terahertz (THz) frequencies and provide large field enhancement close to their gap. We demonstrate both experimentally and theoretically that the field…

Ultrafast, high quantum efficiency single photon detectors are among the most sought-after elements in modern quantum optics and quantum communication. High photon detection efficiency is essential for scalable measurement-based quantum…

Optics · Physics 2015-05-30 W. Pernice , C. Schuck , O. Minaeva , M. Li , G. N. Goltsman , A. V. Sergienko , H. X. Tang

Quantum sensors, qubits sensitive to external fields, have become powerful detectors for various small acoustic and electromagnetic fields. A major key to their success have been dynamical decoupling protocols which enhance sensitivity to…

Quantum Physics · Physics 2021-06-24 Timo Joas , Andreas M. Waeber , Georg Braunbeck , Friedemann Reinhard

Terahertz (THz) imaging has the ability to see through otherwise opaque materials. However, due to the long wavelengths of THz radiation ({\lambda}=300{\mu}m at 1THz), far-field THz imaging techniques are heavily outperformed by optical…

Phase-sensitive detection is the essential projective measurement for measurement-based continuous-variable quantum information processing. The bandwidth of conventional electrical phase-sensitive detectors is up to several gigahertz, which…

Carbon nanostructures, such as nanotubes and graphene nanoribbons, exhibit unique electronic and optical properties that make them very promising candidates for terahertz components. However, carbon nanotube and nanoribbon monolithic…

Mesoscale and Nanoscale Physics · Physics 2026-05-26 Vasil A. Saroka , Olivia Pulci , Marco D'Alessandro

Controlling doping is essential for a successful integration of semiconductor materials into device technologies. However, the assessment of doping levels and the distribution of charge carriers in carbon nanotubes or other nanoscale…

Progress in real-time, simultaneous in vivo detection of multiple neurotransmitters will help accelerate advances in neuroscience research. The need for development of probes capable of stable electrochemical detection of rapid…

The two-phonon scheme of generation of terahertz (THz) photons by gold nanobars (GNBs) is considered. It is shown that in GNBs, by choosing their sizes, it is possible to provide conditions for converting the energy of longitudinal phonons…

Applied Physics · Physics 2019-10-15 K. A. Moldosanov , A. V. Postnikov , V. M. Lelevkin , N. J. Kairyev

Boosting the sensitivity of solid-state gas sensors by incorporating nanostructured materials as the active sensing element can be complicated by interfacial effects. Interfaces at nanoparticles, grains, or contacts may result in non-linear…

The terahertz spectral regime, ranging from about 0.1 to 15 THz, is one of the least explored yet most technologically transformative spectral regions. One current challenge is to develop efficient and compact terahertz emitters/detectors…

Mesoscale and Nanoscale Physics · Physics 2019-03-12 Liang Luo , Ioannis Chatzakis , Jigang Wang , Fabian B. P. Niesler , Martin Wegener , Thomas Koschny , Costas M. Soukoulis

This paper presents a novel approach to noninvasive hyperglycemia monitoring utilizing electrocardiograms (ECG) from an extensive database comprising 1119 subjects. Previous research on hyperglycemia or glucose detection using ECG has been…

Signal Processing · Electrical Eng. & Systems 2024-03-13 MohammadReza Hosseinzadehketilateh , Banafsheh Adami , Nima Karimian

The promising way to provide sufficient transmission capacity is by accessing transmission bands at higher carrier frequencies. This desire for higher carrier frequency or more bandwidth led the researchers to take advantage of the…

Signal Processing · Electrical Eng. & Systems 2024-12-30 Sasmita Dash , Amalendu Patnaik

Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. Owing to the large amount of available bandwidth, THz frequencies can potentially provide…

Information Theory · Computer Science 2021-09-28 Christina Chaccour , Mehdi Naderi Soorki , Walid Saad , Mehdi Bennis , Petar Popovski , Merouane Debbah

Inspired by the extensive application of terahertz imaging technologies in the field of aerospace, we exploit a terahertz frequency modulated continuous wave imaging method with continuous wavelet transform algorithm to detect a multilayer…

Signal Processing · Electrical Eng. & Systems 2019-05-30 Yu Zhou

Hyperspectral imaging is a technique that allows for the creation of multi-color images. At terahertz wavelengths, it has emerged as a prominent tool for a number of applications, ranging from non-ionizing cancer diagnosis and…

In drug discovery research there is a clear and urgent need for non-invasive detection of cell membrane ion channel operation with wide-field capability. Existing techniques are generally invasive, require specialized nano structures, or…