Polarization controlled terahertz time domain spectroscopy using dualcolor plasma

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10251557" target="_blank" >RIV/61989100:27360/22:10251557 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/22:10251557 RIV/61989100:27740/22:10251557

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12502/2663658/Polarization-controlled-terahertz-time-domain-spectroscopy-using-dual-color-plasma/10.1117/12.2663658.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12502/2663658/Polarization-controlled-terahertz-time-domain-spectroscopy-using-dual-color-plasma/10.1117/12.2663658.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2663658" target="_blank" >10.1117/12.2663658</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polarization controlled terahertz time domain spectroscopy using dualcolor plasma

Popis výsledku v původním jazyce

Terahertz waves have found many applications, including imaging, security, high-capacity telecommunications,and quality inspections. Moreover, sample characterization using the terahertz time-domain (THz-TDS) givesus information about both amplitude and phase, which is a significant advantage over other conventional spectroscopic methods. Several sources and detectors, such as photoconductive antennas, nonlinear crystals, orphoto-Dember sources, can be used for these mentioned applications. However, they are often low-energy, limited by threshold or narrow spectrum. In our experimental setup, we generate the THz field using dual-colorplasma. The generation process resides in the mixing of the first and second harmonics providing substantialconversion efficiency, excellent signal-to-noise ratio, and a broad spectrum ranging from 0,1 THz to 4 THz.Furthermore, we enhance our measurement technique by implementing ZnTe polarization-sensitive detection.Here we experimentally demonstrate plasma polarization response. Our multipurpose configuration is employedin various experimental arrangements such as transmission, reflection, or attenuated total reflection (ATR). Itoffers a complete sample analysis of thickness, dielectric functions, birefringence, and optical activity.

Název v anglickém jazyce

Polarization controlled terahertz time domain spectroscopy using dualcolor plasma

Popis výsledku anglicky

Terahertz waves have found many applications, including imaging, security, high-capacity telecommunications,and quality inspections. Moreover, sample characterization using the terahertz time-domain (THz-TDS) givesus information about both amplitude and phase, which is a significant advantage over other conventional spectroscopic methods. Several sources and detectors, such as photoconductive antennas, nonlinear crystals, orphoto-Dember sources, can be used for these mentioned applications. However, they are often low-energy, limited by threshold or narrow spectrum. In our experimental setup, we generate the THz field using dual-colorplasma. The generation process resides in the mixing of the first and second harmonics providing substantialconversion efficiency, excellent signal-to-noise ratio, and a broad spectrum ranging from 0,1 THz to 4 THz.Furthermore, we enhance our measurement technique by implementing ZnTe polarization-sensitive detection.Here we experimentally demonstrate plasma polarization response. Our multipurpose configuration is employedin various experimental arrangements such as transmission, reflection, or attenuated total reflection (ATR). Itoffers a complete sample analysis of thickness, dielectric functions, birefringence, and optical activity.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering. Volume 12502

ISBN

978-1-5106-6111-0

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE - The International Society for Optical Engineering

Místo vydání

Bellingham

Místo konání akce

Wojanów

Datum konání akce

6. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000920988700007