Spectroscopy – Terahertz technologies for imaging, sensing and societal applications

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

June 7, 2026June 6, 2026 by JP

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 terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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

June 7, 2026June 6, 2026 by JP

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

June 7, 2026June 6, 2026 by JP

The work presents a novel passive probe antenna that can be operated at terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

Coupling and Propagation of Sommerfeld Waves at 100 and 300 GHz

June 7, 2026June 6, 2026 by JP

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…

Fast Terahertz Spectroscopic Holographic Assessment of Optical Properties of Diabetic Blood Plasma

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Fast terahertz spectroscopic holographic assessment of optical properties of diabetic blood plasma

The research presents a novel, rapid diagnostic technique that harnesses terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

Terahertz phase retrieval imaging in reflection

June 7, 2026June 6, 2026 by JP

The work demonstrates, for the first time, a practical, single‑beam terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

Multimodal Optical Diagnostics of Glycated Biological Tissues

June 7, 2026June 6, 2026 by JP

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, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in BiomedicalTerahertz and millimeter-wave technologies offer promising non-ionizing tools for biomedical tissue analysis, particularly for breast cancer research. Their sensitivity to water content, tissue structure, and dielectric contrast can help distinguish... More Imaging.

NearSense – Advances Towards a Silicon-Based Terahertz Near-Field Imaging Sensor for Ex Vivo Breast Tumour Identification

June 7, 2026June 6, 2026 by JP

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

An in-depth editorial guide to NearSense – Advances Towards a Silicon-Based TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More Near-Field Imaging Sensor for Ex Vivo Breast Tumour Identification, its scientific context, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in BiomedicalTerahertz and millimeter-wave technologies offer promising non-ionizing tools for biomedical tissue analysis, particularly for breast cancer research. Their sensitivity to water content, tissue structure, and dielectric contrast can help distinguish... More Imaging.

Terahertz frequency modulated continuous wave imaging advanced data processing for art painting analysis

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Guided Reflectometry Imaging Unit Using Millimeter Wave FMCW Radars

An in-depth editorial guide to TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More frequency modulated continuous wave imaging advanced data processing for artTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. Positioned between infrared and microwaves, terahertz waves can penetrate many non-metallic and... More painting analysis, its scientific context, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in ArtTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. Positioned between infrared and microwaves, terahertz waves can penetrate many non-metallic and... More & Cultural Heritage.

Low-frequency noise effect on terahertz tomography using thermal detectors

June 7, 2026June 6, 2026 by JP

TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More computed tomography (THz‑CT) offers a powerful, non‑contact imaging modality for security screening, material inspection and biomedicalTerahertz and millimeter-wave technologies offer promising non-ionizing tools for biomedical tissue analysis, particularly for breast cancer research. Their sensitivity to water content, tissue structure, and dielectric contrast can help distinguish... More diagnostics, yet its practical deployment has been limited by the low photon energy of terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More waves and the high noise levels inherent to thermal…

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

June 7, 2026June 6, 2026 by JP

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…

Room temperature Si–Ti thermopile THz sensor

June 7, 2026June 6, 2026 by JP

The work presents a room‑temperature terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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,…

Room temperature thermopile THz sensor

June 7, 2026June 6, 2026 by JP

Executive Summary The research presented here delivers a novel room‑temperature terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

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

June 7, 2026June 6, 2026 by JP

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

The study demonstrates how terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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 artTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. Positioned between infrared and microwaves, terahertz waves can penetrate many non-metallic and... More, manuscripts, and cultural…

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

June 7, 2026June 6, 2026 by JP

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

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,…

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

June 7, 2026June 6, 2026 by JP

The study demonstrates that terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

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

June 7, 2026June 6, 2026 by JP

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, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in Components & Antennas.

TeraPulse Lx for terahertz imaging of painting on canvas

June 7, 2026June 6, 2026 by JP

An in-depth editorial guide to TeraPulse Lx for terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More imaging of painting on canvas, its scientific context, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in ArtTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. Positioned between infrared and microwaves, terahertz waves can penetrate many non-metallic and... More & Cultural Heritage.

Scanning point terahertz source microscopy of unstained comedo ductal carcinoma in situ

June 7, 2026June 6, 2026 by JP

Executive Summary TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

Durabilité des ressources pédagogiques sur support mobile en génie électrique

June 7, 2026June 6, 2026 by JP

An in-depth editorial guide to Durabilité des ressources pédagogiques sur support mobile en génie électrique, its scientific context, terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More contribution, applications, and collaboration potential in Non-Destructive TestingInspection of dielectric, layered, polymer, composite, and manufactured structures without destructive sampling. Non-Destructive Testing: measurement approach and use cases Work begins with the material and the decision that the measurement... More.

Reconfigurable and versatile augmented reality optical setup for tangible experimentations

June 7, 2026June 6, 2026 by JP

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,…

Broadband THz emission of long pulses from photomixing process with optical chirped pulses

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Guided terahertz pulse reflectometry with double photoconductive antenna

The study introduces a novel photomixing technique that generates long terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (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…

SubTHz Fully-Metallic Geodesic Luneburg Lens Antenna

June 7, 2026June 6, 2026 by JP

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‑terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (sub‑THz) frequency band between 128 and 132…

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

May 17, 2019May 11, 2019 by JP

TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More spectroscopy is a non-destructive analytical technique used in artTerahertz technology offers a powerful, non-invasive way to explore and preserve works of artTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. Positioned between infrared and microwaves, terahertz waves can penetrate many non-metallic and... More and cultural heritage objects. … Read more