Terahertz structured beams for material diagnostics and microscopy (Q84353)
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Project Q84353 in Poland
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Terahertz structured beams for material diagnostics and microscopy |
Project Q84353 in Poland |
Statements
784,970.0 zloty
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784,970.0 zloty
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100.0 percent
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1 February 2019
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31 January 2021
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POLITECHNIKA WARSZAWSKA
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Our research responds, to the need of screening potential security threats concealed by airline passengers, or in parcels for embassies, the topic nowadays essential. The project aims at beam focusing of terahertz radiation. According to classical electromagnetics for Gaussian beams, the focus spot diameter cannot be smaller than c.a the beam wavelength (due to the diffraction limit). The effect is notably for long terahertz wavelengths and hinders its imaging resolution. The recent experiments in the so-called structured light show that the limit is less constrained. The project coalesces two very vibrant fields in photonics: so-called structured light and terahertz techniques. It is predominantly experimental research, pioneering in THz vortices generation and their characterization. The outcome of the project will improve detail resolution in terahertz security scanners and material diagnostics, i.e., terahertz near-field microscopy for semiconductor and material science. (Polish)
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Our research responds, to the need of screening potential security threats concealed by airline passengers, or in parcels for embassies, the topic nowadays essential. The project aims at beam focusing of terahertz radiation. According to classical Electromagnetics for Gaussian beams, the focus spot diameter cannot be smaller than c.a the beam wavelength (due to the diffraction limit). The effect is notably for long terahertz wavelengths and Hinders its imaging resolution. The recent experiments in the so-called structured light show that the limit is less constrained. The project coalesces two very vibrant fields in photonics: so-called structured light and terahertz techniques. It is predominantly experimental research, pioneering in THz vortices generation and their characterisation. The outcome of the project will improve detail resolution in terahertz security scanners and material diagnostics, i.e., terahertz near-field microscopy for semiconductor and material science. (English)
14 October 2020
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Notre recherche répond, à la nécessité d’un filtrage des menaces potentielles à la sécurité cachées par les passagers des compagnies aériennes, ou dans Parcels for Ambassies, le sujet aujourd’hui essentiel. Le projet vise à mettre au point des faisceaux de rayonnement terahertz. Selon les électromagnétiques classiques pour les faisceaux gaussiens, le diamètre du point de mise au point ne peut être inférieur à la longueur d’onde du faisceau (en raison de la limite de diffraction). L’effet est notamment pour les longues longueurs d’onde terahertz et Hinders sa résolution d’imagerie. Les expériences récentes dans ce que l’on appelle la lumière structurée montrent que la limite est moins limitée. Le projet rassemble deux champs très dynamiques en photonique: techniques dites structurées de lumière et de térahertz. Il s’agit principalement de recherches expérimentales, pionnières dans la génération des vortices de THz et leur caractérisation. Les résultats du projet permettront d’améliorer la résolution des détails dans les scanners de sécurité et les diagnostics de matériaux, c’est-à-dire la microscopie de terrain proche de terahertz pour les semi-conducteurs et la science des matériaux. (French)
30 November 2021
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Identifiers
POIR.04.04.00-00-5E4E/18
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