Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10437129" target="_blank" >RIV/00216208:11320/21:10437129 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=g~Xu6bPTh7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=g~Xu6bPTh7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OPTICA.430504" target="_blank" >10.1364/OPTICA.430504</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz

Popis výsledku v původním jazyce

Reliable modulation of terahertz electromagnetic waveforms is important for many applications. Here, we rapidly modulate the direction of the electric field of linearly polarized terahertz electromagnetic pulses with 1-30 THz bandwidth by applying time-dependent magnetic fields to a spintronic terahertz emitter. Polarity modulation of the terahertz field with more than 99% contrast at a rate of 10 kHz is achieved using a harmonic magnetic field. By adding a static magnetic field, we modulate the direction of the terahertz field between angles of, for instance, -53 degrees and 53 degrees at kilohertz rates. We believe our approach makes spintronic terahertz emitters a promising source for low-noise modulation spectroscopy and polarization-sensitive techniques such as ellipsometry at 1-30 THz. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Název v anglickém jazyce

Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz

Popis výsledku anglicky

Reliable modulation of terahertz electromagnetic waveforms is important for many applications. Here, we rapidly modulate the direction of the electric field of linearly polarized terahertz electromagnetic pulses with 1-30 THz bandwidth by applying time-dependent magnetic fields to a spintronic terahertz emitter. Polarity modulation of the terahertz field with more than 99% contrast at a rate of 10 kHz is achieved using a harmonic magnetic field. By adding a static magnetic field, we modulate the direction of the terahertz field between angles of, for instance, -53 degrees and 53 degrees at kilohertz rates. We believe our approach makes spintronic terahertz emitters a promising source for low-noise modulation spectroscopy and polarization-sensitive techniques such as ellipsometry at 1-30 THz. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Optica

ISSN

2334-2536

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1013-1019

Kód UT WoS článku

000675721900012

EID výsledku v databázi Scopus

2-s2.0-85110380723