Continuous‐wave scanning terahertz near‐field microscope

Terahertz research image associated with Continuous-wave scanning terahertz near-field microscope

The work reported by Guillet, Chusseau, Adam, Grosjean, Penarier, Baida and Charraut describes the development of a continuous‑wave terahertz (THz) near‑field microscope that exploits Sommerfeld surface waves guided along metallic wires. By combining differential phase plates, a Y‑splitter and a…

Linear to radial polarization conversion in the THz domain using a passive system

Terahertz research image associated with Continuous-wave scanning terahertz near-field microscope

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…

Theoretical and experimental studies of metallic grids absorption: Application to the design of a bolometer

Research figure associated with Room temperature thermopile THz sensor

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…

Near-field wire-based passive probe antenna for the selective detection of the longitudinal electric field at terahertz frequencies

Terahertz research image associated with Continuous-wave scanning terahertz near-field microscope

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…

A comprehensive study of the application of the EOP techniques on bipolar devices

Research figure associated with Room temperature thermopile THz sensor

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…

Study of blood plasma optical properties in mice grafted with Ehrlich carcinoma in the frequency range 0.1–1.0 THz

Research figure associated with Study of blood plasma optical properties in mice grafted with Ehrlich carcinoma in the frequency range 0.1–1.0 THz

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…

Multimodal Optical Diagnostics of Glycated Biological Tissues

Research figure associated with Study of blood plasma optical properties in mice grafted with Ehrlich carcinoma in the frequency range 0.1–1.0 THz

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.

Terahertz Spectroscopy and Quantum Mechanical Simulations of Crystalline Copper-Containing Historical Pigments

Terahertz research image associated with Terahertz spectroscopy and quantum mechanical simulations of crystalline copper-containing historical pigments

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…

Using soy protein in the three-component phantom for breast cancer mimicking

Research figure associated with Terahertz refractive index-based morphological dilation for breast carcinoma delineation

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,…

Tunable ultrafast infrared generation in a gas-filled hollow-core capillary by a four-wave mixing process

Research figure associated with Tunable ultrafast infrared generation in a gas-filled hollow-core capillary by a four-wave mixing process

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.

TeraPulse Lx for terahertz imaging of painting on canvas

Terahertz research image associated with TeraPulse Lx for terahertz imaging of painting on canvas

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.

Terahertz diffractive imaging with saturated data inpainting

Terahertz research image associated with Terahertz Diffractive Imaging with Saturated Data Inpainting

Executive Summary This research introduces a novel algorithm—Multiplane Iterative Phase Retrieval with Inpainting (SBMIR‑I)—that corrects for over‑exposure in terahertz (THz) diffraction imaging. By automatically “inpainting” saturated regions in the measured intensity data, the algorithm…

Reconfigurable and versatile augmented reality optical setup for tangible experimentations

Terahertz research image associated with Reconfigurable and versatile augmented reality optical setup for tangible experimentations

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,…

SubTHz Fully-Metallic Geodesic Luneburg Lens Antenna

Research figure associated with SubTHz Fully-Metallic Geodesic Luneburg Lens Antenna

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…