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…
An in-depth editorial guide to Aeronautics composite material inspection with a terahertz time-domain spectroscopy system, its scientific context, terahertz contribution, applications, and collaboration potential in Non-Destructive Testing.
The research team from Bordeaux and Limoges has engineered a compact, optics‑free terahertz imaging system that delivers high‑resolution reflectometry through a single hollow‑core waveguide. By integrating two photoconductive antennas on a single low‑temperature gallium arsenide chip and coupling…
Terahertz time‑domain spectroscopy (THz‑TDS) is a powerful, contact‑less technique for probing the internal structure of layered materials, a capability that is increasingly valuable in aerospace, automotive, composite manufacturing, and cultural heritage conservation. Conventional THz‑TDS analysis…
A new terahertz imaging platform has been introduced that reconciles the high sensitivity of terahertz (THz) radiation with the practical constraints of industrial and medical diagnostics. By focusing femtosecond pulses from a fiber‑coupled 1.56 µm laser onto a thin gallium arsenide crystal, the…
An in-depth editorial guide to Ex Vivo Breast Tumor Identification: Advances Toward a Silicon-Based Terahertz Near-Field Imaging Sensor, its scientific context, terahertz contribution, applications, and collaboration potential in Biomedical Imaging.
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 pilot research demonstrates that terahertz (THz) imaging in the 300‑600 GHz band can reliably distinguish between malignant and healthy breast tissues within freshly excised specimens. Because the refractive index of cancerous tissue mixtures is measurably higher than that of fat or normal…
Terahertz (THz) imaging offers a non‑destructive, contactless method for probing the internal structure of dielectric materials, yet its practical use has been limited by severe artifacts caused by refractive‑index mismatch at sample interfaces. This study demonstrates that immersing non‑planar…
Terahertz (THz) imaging exploits the unique ability of 0.3–10 THz radiation to penetrate a wide range of dielectric materials while providing spectroscopic fingerprints of many chemical species. The reviewed work demonstrates that, beyond conventional two‑dimensional transmission or reflection…
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…
Terahertz (THz) imaging has been demonstrated as a powerful, non‑contact, non‑ionizing technique for probing the internal structure of cultural heritage objects, particularly those mounted on metal supports where conventional optical, X‑ray, or infrared methods fail. In this study, a…
Executive Summary Recent research has demonstrated that terahertz (THz) near‑field microscopy can be employed to detect ductal carcinoma in situ (DCIS) – a pre‑invasive breast cancer that is notoriously difficult to identify during surgery due to its small size (50–500 µm). Conventional THz…
The study demonstrates a new generation of terahertz‑frequency radar probes that combine a frequency‑modulated continuous‑wave (FMCW) transmitter with a thin‑wall hollow‑core dielectric waveguide. By guiding the millimetre‑wave signal directly inside a polymer pipe, the device eliminates the need…
Terahertz time‑domain imaging has been harnessed to generate refractive‑index maps of freshly excised breast tissue, enabling a non‑ionising, optical‑based assessment of tumour margins during breast‑conserving surgery. By converting the refractive‑index distribution into a binary map and then…
Terahertz near‑field microscopy built around a scanning point terahertz source (SPoTS) achieves a spatial resolution of approximately ten micrometres, breaking the diffraction‑limited barrier that has traditionally constrained terahertz imaging to millimetre scales. By placing a formalin‑fixed,…
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…