FMCW – Terahertz technologies for imaging, sensing and societal applications

Aeronautics composite material inspection with a terahertz time-domain spectroscopy system

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Terahertz waves for contactless control and imaging in aeronautics industry

An in-depth editorial guide to Aeronautics composite material inspection with a 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 time-domain spectroscopy system, 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.

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.

Art Painting Diagnostic Before Restoration with Terahertz and Millimeter Waves

June 7, 2026June 6, 2026 by JP

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

An in-depth editorial guide to 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 Diagnostic Before Restoration with 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 and Millimeter Waves, 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 waves for contactless control and imaging in aeronautics industry

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 technology is emerging as a powerful, contact‑free tool for the aeronautics sector, offering both rapid structural health monitoring and precise material characterization. The study demonstrates that frequency‑modulated continuous‑wave (FMCW) radars operating in the 100–300 GHz band can…

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.

An algorithm of unordered wavefront propagation in terahertz phase retrieval with dense multiplane data acquisition

June 7, 2026June 6, 2026 by JP

Research figure associated with An algorithm of unordered wavefront propagation in terahertz phase retrieval with dense multiplane data acquisition

An in-depth editorial guide to An algorithm of unordered wavefront propagation in 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 phase retrieval with dense multiplane data acquisition, 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 Nondestructive Testing with Ultra-Wideband FMCW Radar

June 7, 2026June 6, 2026 by JP

The 150 GHz continuous‑wave radar, based on a homodyne eight‑harmonic mixing architecture, delivers non‑contact, high‑dynamic‑range imaging of a broad class of materials at sub‑millimetre depth resolution and up to 7.6 kHz frame rates. Achieving a 100 dB measurement dynamic range for few‑second…

Augmented Reality Terahertz (AR-THz) Sensing and Imaging with Frequency-Modulated Continuous-Wave Radar

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Augmented reality terahertz (AR-THz) sensing and imaging with frequency-modulated continuous-wave radar

The research introduces a handheld 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) sensing platform that fuses a frequency-modulated continuous wave (FMCW) radar with a smartphone‑based augmented reality (AR) interface. The integration eliminates the need for heavy mechanical scanners, reducing system weight and cost while…

Feasibility of Using a 300 GHz Radar to Detect Fractures and Lithological Changes in Rocks

June 7, 2026June 6, 2026 by JP

The study demonstrates that a compact, frequency‑modulated continuous‑wave radar operating at 300 GHz can non‑destructively image rock interiors with unprecedented detail. By scanning a 121 cm² area in only fifteen minutes, the system resolves millimetre‑scale fractures and subtle lithological…

Guided Reflectometry Imaging Unit Using Millimeter Wave FMCW Radars

June 7, 2026June 6, 2026 by JP

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…

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…

Feasibility of Using a 300 GHz Radar to Detect Fractures and Lithological Changes in Rocks

February 19, 2024 by JP

This article examines the possibility of using a high frequency radar (300 GHz) to detect fractures and lithological changes in rocks. This study, carried out in collaboration between Federico Sanjuan (University of Pau, France) and the IMS laboratory (University of Bordeaux), is in the context of the improvement of the methods of detection and quantification … Read more

Guided Reflectometry Imaging Unit using Millimeter Wave FMCW Radars

June 13, 2022July 14, 2020 by JP

Plastic wavguide for terahertz sensing in reflection

In this paper published in july 2020 in IEEE Transactions on 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 Science and Technology, we present a reflectometry sensing system associated with a frequency modulated continuous … Read more

Paris Air Show 2019

June 7, 2019 by JP

As part of the Saphyr project, photonic and aeronautic prototypes from the Aquitaine region will be presented at the Paris Air show 2019. Visit our booth A120 Hall 4 to discuss 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, … Read more

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

May 16, 2019May 14, 2019 by JP

In this paper, we focus on data processing applied 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 FMCW measurement of a painting. Investigated paintings FMCW radarFMCW radar transmits a continuously swept frequency and measures the beat signal produced by delayed reflections, enabling distance, thickness, and depth-resolved imaging with compact coherent hardware. More processing The proposed approach consist to use … Read more

Review of terahertz tomography techniques

May 16, 2019December 18, 2017 by JP

Guillet, J. P., Recur, B., Frederique, L., Bousquet, B., Canioni, L., Manek-Hönninger, I., … & Mounaix, P. (2014). Review 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 tomography techniques. Journal of Infrared, Millimeter, and 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, 35(4), 382-411.

Art Painting Diagnostic Before Restoration with Terahertz and Millimeter Waves

May 27, 2019June 12, 2016 by JP

Introduction 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 time domain imaging, FMCW and spectroscopy are useful tools for 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 … Read more