Polarization controlled terahertz time domain spectroscopy using dual-color plasma

Iva Hlobílková; Pierre Koleják; Martin Mičica; Kamil Postava

doi:10.1117/12.2663658

12 December 2022 Polarization controlled terahertz time domain spectroscopy using dual-color plasma

Iva Hlobílková, Pierre Koleják, Martin Mičica, Kamil Postava

Proceedings Volume 12502, 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 1250208 (2022) https://doi.org/10.1117/12.2663658
Event: 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2022, Wojanow, Poland

Abstract

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) gives us 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, or photo-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-color plasma. The generation process resides in the mixing of the first and second harmonics providing substantial conversion 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 employed in various experimental arrangements such as transmission, reflection, or attenuated total reflection (ATR). It offers a complete sample analysis of thickness, dielectric functions, birefringence, and optical activity.

Citation Download Citation

Iva Hlobílková, Pierre Koleják, Martin Mičica, and Kamil Postava "Polarization controlled terahertz time domain spectroscopy using dual-color plasma", Proc. SPIE 12502, 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 1250208 (12 December 2022); https://doi.org/10.1117/12.2663658

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Terahertz radiation

Polarization

Plasma

Crystals

Spectroscopy

Terahertz spectroscopy

Nonlinear crystals

Show All Keywords

Keywords/Phrases

Search In:

Publication Years