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Optically generated terahertz (THz) oscillators have garnered considerable attention in recent years due to their potential for wide tunability and low phase noise. Here, for the first time, a dissipative Kerr microresonator soliton comb…

Optics · Physics 2025-06-10 Omnia Nawwar , Kaoru Minoshima , Naoya Kuse

The precision measurement of real-time electron temporal profiles is crucial for advancing electron and X-ray devices used in ultrafast imaging and spectroscopy. While high temporal resolution and large temporal window can be achieved…

Terahertz (THz)-band communications are a key enabler for future-generation wireless communications systems that promise to integrate a wide range of data-demanding applications. Recent advances in photonic, electronic, and plasmonic…

Signal Processing · Electrical Eng. & Systems 2021-08-19 Hadi Sarieddeen , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

We report a Mueller matrix ellipsometer design using dual continuously rotating anisotropic meta wave plates which determines the full set of Mueller matrix elements in the terahertz spectral range. The instrument operates in the frequency…

Instrumentation and Detectors · Physics 2025-03-31 Viktor Rindert , Alexander Ruder , Steffen Richter , Philipp Kühne , Mark Bauer , Vanya Darakchieva , Mathias Schubert

Designing terahertz sensors with high sensitivity to detect nanoscale thin films and single biomolecule presents a significant challenge, and addressing these obstacles is crucial for unlocking their full potential in scientific research…

We report on a lightwave-driven scanning tunneling microscope based on a home-built microscope and a compact, commercial, and cost-effective terahertz-generation unit with a repetition rate of 100 MHz. The measurements are performed in…

Mesoscale and Nanoscale Physics · Physics 2024-02-27 Hüseyin Azazoglu , Philip Kapitza , Martin Mittendorff , Rolf Möller , Manuel Gruber

In nonlinear microresonators driven by continuous-wave (cw) lasers, Turing patterns have been studied in the formalism of Lugiato-Lefever equation with emphasis on its high coherence and exceptional robustness against perturbations.…

Terahertz (THz) band communication, ranging from 0.1 THz to 10 THz, is envisioned as a key enabling technology for next-generation networks and future applications such as inter-satellite communications and environmental sensing. The…

Signal Processing · Electrical Eng. & Systems 2024-11-20 Zhepu Yin , Weijun Gao , Chong Han

This paper provides a concise yet comprehensive review of recent advancements in millimeter-wave (mm-wave) oscillators below 100 GHz and sub-terahertz (sub-THz/THz) oscillators above 100 GHz for next-generation computing and communication…

Signal Processing · Electrical Eng. & Systems 2026-04-30 Baktash Behmanesh , Ahmad Rezvanitabar

We present a development of a high precision, tunable far-infrared (terahertz) frequency-domain dielectric spectrometer for studying the dynamics of biomolecules in aqueous solutions in the gigahertz-to-terahertz frequency. As a first…

Biological Physics · Physics 2016-01-20 Deepu K. George , Ali Charkhesht , N. Q. Vinh

Terahertz (THz) technologies, generally defined as operating in the 0.1-10THz range, bridge the gap between electronic and photonic devices. Because THz radiation passes readily through materials such as plastics, paper and cloth it can be…

Phase modulation plays a crucial role in various terahertz applications, including biomedical imaging, high-rate communication, and radar detection. Existing terahertz phase shifters typically rely on tuning the resonant effect of…

Optics · Physics 2023-05-19 Xudong Liu , Daosong Yu , Chuanfu Sun , Zhijie Mei , Hao Chen , Jianbin Xu , Yiwen Sun

Scaling femtosecond terahertz (THz) and ultraviolet (UV) sources to high repetition rates is essential for high-throughput ultrafast spectroscopy and imaging applications. Yet, their efficient generation at high average power remains…

Optics · Physics 2026-01-06 Andrey Ryabov , Kasra Amini

This paper describes a THz transmission spectrometer for the spectral range of 2-65 cm^-1 (100 GHz to 2 THz) with a spectral resolution of at least 1.8 cm^-1 (50 GHz) where the source, sample, and detector are all fully contained in a…

Instrumentation and Detectors · Physics 2009-11-07 P. J. Burke , J. P. Eisenstein , L. N. Pfeiffer , K. W. West

Terahertz (THz) spectroscopy holds transformative potential for non-invasive sensing, yet characterizing individual nanoparticles in complex biological environments remains challenging due to the far-field diffraction limit. While…

Applied Physics · Physics 2026-02-06 Ricardo Martin Abraham-Ekeroth , Dani Torrent

A multichannel thin-film sensor is implemented from a set of microstrip-coupled split-ring resonators (SRR's) with different dimensions. Each SRR exhibits a unique high-Q resonance that is sensitive to the presence of a sample in a…

Instrumentation and Detectors · Physics 2013-02-01 Withawat Withayachumnankul , Kata Jaruwongrungsee , Christophe Fumeaux , Derek Abbott

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

Terahertz radiation finds an increasing number of applications, yet efficient generation and detection remain a challenge and an active area of research. In particular, the precise detection of weak and narrowband terahertz signals is…

Real-time frequency readout of time-dependent pulsed signals with a high sensitivity are key elements in many applications using atomic devices, such as FID atomic magnetometers. In this paper, we propose a frequency measurement algorithm…

Instrumentation and Detectors · Physics 2025-06-06 Tong Gong , Ming-Rui Shu , Jiang He , Kai Liu , Yi-Ren Li , Xin-Jun Hao , Dong Sheng , Yu-Ming Wang , Yu-Kun Feng

Experiments with superconducting circuits require careful calibration of the applied pulses and fields over a large frequency range. This remains an ongoing challenge as commercial semiconductor electronics are not able to probe signals…