Phase Retrieval; – Terahertz technologies for imaging, sensing and societal applications

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…

Terahertz imaging and tomography as efficient instruments for testing polymer additive manufacturing objects

June 7, 2026June 6, 2026 by JP

Terahertz research image associated with Terahertz Nondestructive Testing with Ultra-Wideband FMCW Radar

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 and tomography have been shown to provide a rapid, non‑destructive and radiation‑free method for inspecting polymer parts produced by additive manufacturing. Unlike conventional X‑ray tomography, THz techniques offer the possibility of routine quality assurance for complex…

Review of Terahertz Tomography Techniques

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 (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…

Liquid index matching for 2D and 3D terahertz imaging

June 7, 2026June 6, 2026 by JP

Research figure associated with Propagation beam consideration for 3D THz computed tomography

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 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…

Single-scan multiplane phase retrieval with a radiation of terahertz quantum cascade laser

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 Single-scan multiplane phase retrieval with a radiation 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 quantum cascade laser, 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 diffractive imaging with saturated data inpainting

June 7, 2026June 6, 2026 by JP

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

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

Skeletonization and 3D rendering with real time terahertz tomography

June 7, 2026June 6, 2026 by JP

The study demonstrates a fully integrated, real‑time 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 platform that can acquire full‑field images at 25 frames per second, reconstruct a three‑dimensional volume, and automatically process that data to reveal detailed internal morphology within a single minute. By…

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

June 7, 2026June 6, 2026 by JP

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 diffractive imaging with saturated data inpainting

February 18, 2024 by JP

This article focuses on improving diffraction imaging techniques in the field of Térahertz frequencies, by approaching the problem of data saturation due to the limited dynamic range of detection systems. We introduce with the ITMO team (Nikolay V Petrov Team) a new approach to algorithmic reconstruction which deals with saturated areas in the measured intensity … Read more

Terahertz Phase Retrieval Imaging in Reflection

May 17, 2022July 14, 2020 by JP

Collaboration with ITMO University about 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 After the visit of the great museum of optics in ITMO, Saint Petersbourg, Russia, an interesting discussion started with ITMO colleagues about 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 … Read more