Performance comparison of time-domain terahertz, multi-terahertz, and Fourier transform infrared spectroscopies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00498114" target="_blank" >RIV/68378271:_____/18:00498114 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10762-018-0544-9" target="_blank" >http://dx.doi.org/10.1007/s10762-018-0544-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10762-018-0544-9" target="_blank" >10.1007/s10762-018-0544-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance comparison of time-domain terahertz, multi-terahertz, and Fourier transform infrared spectroscopies

Popis výsledku v původním jazyce

Time-domain terahertz (THz), multi-THz, and Fourier transform infrared (FTIR) spectroscopies access partly similar and partly complementary spectral ranges of the far-infrared region. We introduce an approach enabling a direct comparison of their performance in terms of the signal-to-noise ratio (SNR) and dynamic range (DR), normalized by the time required to obtain one useful data point in the frequency domain. Several configurations of a commercial FTIR spectrometer are compared to our various custom-built time-domain systems (including femtosecond oscillator and amplifier-based THz and multi-THz setups). We find that the normalized SNR of the FTIR systems is generally better than that of the time-domain setups, which is attributed to the noise of the femtosecond laser output compared to the black body radiation source. On the other hand, the coherent detection of the THz field in the time-domain systems leads to a dramatically better normalized DR than in the FTIR configurations.n

Název v anglickém jazyce

Performance comparison of time-domain terahertz, multi-terahertz, and Fourier transform infrared spectroscopies

Popis výsledku anglicky

Time-domain terahertz (THz), multi-THz, and Fourier transform infrared (FTIR) spectroscopies access partly similar and partly complementary spectral ranges of the far-infrared region. We introduce an approach enabling a direct comparison of their performance in terms of the signal-to-noise ratio (SNR) and dynamic range (DR), normalized by the time required to obtain one useful data point in the frequency domain. Several configurations of a commercial FTIR spectrometer are compared to our various custom-built time-domain systems (including femtosecond oscillator and amplifier-based THz and multi-THz setups). We find that the normalized SNR of the FTIR systems is generally better than that of the time-domain setups, which is attributed to the noise of the femtosecond laser output compared to the black body radiation source. On the other hand, the coherent detection of the THz field in the time-domain systems leads to a dramatically better normalized DR than in the FTIR configurations.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Infrared, Millimeter and Terahertz Waves

ISSN

1866-6892

e-ISSN

—

Svazek periodika

39

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

1249-1263

Kód UT WoS článku

000448588100007

EID výsledku v databázi Scopus

2-s2.0-85055449756