Optically pumped broadband terahertz modulator based on nanostructured PtSe2 thin films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00531701" target="_blank" >RIV/68378271:_____/20:00531701 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/adom.201901714" target="_blank" >https://doi.org/10.1002/adom.201901714</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adom.201901714" target="_blank" >10.1002/adom.201901714</a>
Alternative languages
Result language
angličtina
Original language name
Optically pumped broadband terahertz modulator based on nanostructured PtSe2 thin films
Original language description
Here, an optically pumped terahertz (THz) modulator based on the novel transition metal dichalcogenide (TMD) material platinum diselenide (PtSe2) is demonstrated. The nanostructured PtSe2 thin films are formed by direct selenization of the sputtered platinum film on a high-resistivity silicon substrate. Raman spectroscopy, scanning electron microscopy, and high-resolution transmission electron microscopy confirm the formation of polycrystalline PtSe2 nanostructures. The transmission measurements reveal the modulation of the THz waves in the wide frequency range of 0.1-1 THz. The modulation depth of 32.7% is achieved under low pumping laser power of 1 W cm(-2). The numerical analysis based on the finite difference time domain method is in good agreement with the experimentally obtained results. Further, the simulation results manifest that higher modulation depth can be achieved with the utilization of higher laser power. This work provides a path for the application of TMD materials like PtSe2 in the development of THz tunable devices such as modulators, polarizers, filters.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Optical Materials
ISSN
2195-1071
e-ISSN
—
Volume of the periodical
8
Issue of the periodical within the volume
7
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000508447500001
EID of the result in the Scopus database
2-s2.0-85078659798