The work presents a compact, passive device that transforms a conventional linearly polarized terahertz (THz) beam into a radially polarized one, a field configuration that offers superior focusing, enhanced longitudinal fields, and improved coupling to near‑field probes. By adapting a proven…
The study delivers a comprehensive, validated framework for designing metallic grid absorbers with precisely tailored electrical resistivity, enabling the creation of efficient, room‑temperature bolometers and other thermal detectors. By treating structured metal layers as equivalent homogeneous…
The work presents a novel passive probe antenna that can be operated at terahertz (0.1 THz) frequencies using a simple, purely passive structure. The antenna consists of a slender metal wire backed by a discontinuous phase plate that converts an ordinary linearly‑polarized free‑space beam into a…
The study demonstrates that millimetre‑wave guided modes—known as Sommerfeld waves—can be efficiently launched and transported along simple metallic wires at 100 GHz and 300 GHz. By inserting a straightforward differential phase plate in front of the wire, the researchers achieved a theoretical…
The research presents a novel, rapid diagnostic technique that harnesses terahertz (THz) pulse time‑domain holography to evaluate the optical properties of lyophilized blood plasma pellets. By converting plasma into compact, freeze‑dried tablets, the method overcomes the limitations of liquid blood…
The work demonstrates, for the first time, a practical, single‑beam terahertz (THz) phase‑retrieval imaging system that operates in a reflection configuration at a continuous‑wave frequency of 0.287 THz. By recording the reflected intensity at 27 axial positions and combining the signals from two…
An in-depth editorial guide to Multimodal Optical Diagnostics of Glycated Biological Tissues, its scientific context, terahertz contribution, applications, and collaboration potential in Biomedical Imaging.
An in-depth editorial guide to NearSense – Advances Towards a Silicon-Based Terahertz Near-Field Imaging Sensor for Ex Vivo Breast Tumour Identification, its scientific context, terahertz contribution, applications, and collaboration potential in Biomedical Imaging.
An in-depth editorial guide to Terahertz frequency modulated continuous wave imaging advanced data processing for art painting analysis, its scientific context, terahertz contribution, applications, and collaboration potential in Art & Cultural Heritage.
Terahertz computed tomography (THz‑CT) offers a powerful, non‑contact imaging modality for security screening, material inspection and biomedical diagnostics, yet its practical deployment has been limited by the low photon energy of terahertz waves and the high noise levels inherent to thermal…
The study demonstrates that Electro‑Optical Probing (EOP), a non‑invasive laser‑based diagnostic technique, can be reliably applied to bipolar semiconductor devices to uncover internal electrical activity and identify failure mechanisms that are otherwise invisible to conventional analysis. By…
The work presents a room‑temperature terahertz (THz) detector based on a thermopile that converts absorbed THz radiation into a measurable voltage. The sensor’s absorber is a metallic grid engineered through a multilayer theoretical model that accounts for diffraction and equivalent resistivity,…
Executive Summary The research presented here delivers a novel room‑temperature terahertz (THz) sensor that converts incident electromagnetic power into a measurable electrical signal via a thermopile assembled on a micro‑fabricated silicon dioxide membrane. By using a metallic grid absorber…
The study demonstrates how terahertz (THz) spectroscopy, when coupled with solid‑state density functional theory (ss‑DFT) simulations, provides a powerful, non‑destructive tool for the identification and analysis of copper‑containing historical pigments used in art, manuscripts, and cultural…
The study presents a novel class of zwitterionic polymeric nanogels engineered to mimic the physicochemical properties of biological fluids and to serve simultaneously as diagnostic and therapeutic agents for breast cancer. By tailoring the composition of the nanogels—incorporating gelatin,…
The study demonstrates that terahertz (THz) time‑domain spectroscopy can detect measurable changes in the optical properties of blood plasma from mice bearing Ehrlich carcinoma, offering a rapid, non‑invasive diagnostic approach for oncological disease. By measuring the refractive index and…
An in-depth editorial guide to Tunable ultrafast infrared generation in a gas-filled hollow-core capillary by a four-wave mixing process, its scientific context, terahertz contribution, applications, and collaboration potential in Components & Antennas.
An in-depth editorial guide to TeraPulse Lx for terahertz imaging of painting on canvas, its scientific context, terahertz contribution, applications, and collaboration potential in Art & Cultural Heritage.
Executive Summary Terahertz (THz) imaging has long promised a label‑free path to diagnosing cancers by exploiting the sensitivity of THz waves to tissue hydration, cellular density, and molecular composition. In breast cancer, the earliest precursor lesion—ductal carcinoma in situ (DCIS)—requires…
An in-depth editorial guide to Durabilité des ressources pédagogiques sur support mobile en génie électrique, its scientific context, terahertz contribution, applications, and collaboration potential in Non-Destructive Testing.
Hybrid Optical Bench for Innovative Teaching and learning (HOBIT) combines a physical optical table with a real‑time, self‑adaptive digital simulation and augmented‑reality overlays. The system enables any optical experiment to be assembled, adjusted, and observed in a single secure,…
The study introduces a novel photomixing technique that generates long terahertz (THz) pulses with a broad, linearly chirped spectrum by interfering two optical pulses of opposite chirp. By stretching each pulse to roughly 90 ps and applying opposite frequency sweeps, the beat frequency evolves…
Executive Summary A team of researchers from KTH Royal Institute of Technology, INSA Rennes, the University of Bordeaux, and ESA has developed and experimentally validated a fully metallic geodesic Luneburg lens antenna that operates in the sub‑terahertz (sub‑THz) frequency band between 128 and 132…
Terahertz spectroscopy is a non-destructive analytical technique used in art conservation and restoration. It can provide compelling data concerning the composition and condition of culturally valuable and historical objects. Terahertz spectral databases of modern and ancient artists’ pigments exist, but lack explanations for the origins of the unique spectral features. This paper present terahertz spectra … Read more