Vaš brskalnik ne omogoča JavaScript!
JavaScript je nujen za pravilno delovanje teh spletnih strani. Omogočite JavaScript ali pa uporabite sodobnejši brskalnik.
Nacionalni portal odprte znanosti
Odprta znanost
DiKUL
slv
|
eng
Iskanje
Brskanje
Novo v RUL
Kaj je RUL
V številkah
Pomoč
Prijava
Tunable entangled photon-pair generation in a liquid crystal
ID
Sultanov, Vitaliy
(
Avtor
),
ID
Kavčič, Aljaž
(
Avtor
),
ID
Kokkinakis, Emmanouil
(
Avtor
),
ID
Sebastián Ugarteche, Nerea
(
Avtor
),
ID
Chekhova, Maria V.
(
Avtor
),
ID
Humar, Matjaž
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(3,26 MB)
MD5: CEB6D0045E4C9B7ED09E1FC3B8FBB357
URL - Izvorni URL, za dostop obiščite
https://www.nature.com/articles/s41586-024-07543-5
Galerija slik
Izvleček
Liquid crystals, with their ability to self-assemble, strong response to an electric field and integrability into complex systems, are key materials in light-beam manipulation. The recently discovered ferroelectric nematic liquid crystals also have considerable second-order optical nonlinearity, making them a potential material for nonlinear optics. Their use as sources of quantum light could considerably extend the boundaries of photonic quantum technologies. However, spontaneous parametric down-conversion, the basic source of entangled photons, heralded single photons and squeezed light, has so far not been observed in liquid crystals—or in any liquids or organic materials. Here we implement spontaneous parametric down-conversion in a ferroelectric nematic liquid crystal and demonstrate electric-field tunable broadband generation of entangled photons, with an efficiency comparable to that of the best nonlinear crystals. The emission rate and polarization state of photon pairs is markedly varied by applying a few volts or twisting the molecular orientation along the sample. A liquid-crystal source enables a special type of quasi-phase matching, which is based on the molecular twist structure and is therefore reconfigurable for the desired spectral and polarization properties of photon pairs. Such sources promise to outperform standard nonlinear optical materials in terms of functionality, brightness and the tunability of the generated quantum state. The concepts developed here can be extended to complex topological structures, macroscopic devices and multi-pixel tunable quantum light sources.
Jezik:
Angleški jezik
Ključne besede:
liquid crystals
,
nonlinear optics
,
quantum information
,
quantum oprics
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FMF - Fakulteta za matematiko in fiziko
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Datum objave:
12.06.2024
Leto izida:
2024
Št. strani:
Str. 294-299
Številčenje:
Vol. 631, iss. 8020
PID:
20.500.12556/RUL-159767
UDK:
538.9:535
ISSN pri članku:
0028-0836
DOI:
10.1038/s41586-024-07543-5
COBISS.SI-ID:
199216387
Datum objave v RUL:
24.07.2024
Število ogledov:
125
Število prenosov:
23
Metapodatki:
Citiraj gradivo
Navadno besedilo
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Kopiraj citat
Objavi na:
Gradivo je del revije
Naslov:
Nature : the international weekly journal of science
Skrajšan naslov:
Nature
Založnik:
Macmillan
ISSN:
0028-0836
COBISS.SI-ID:
1078026
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
tekoči kristali
,
nelinearna optika
,
kvantna informacija
,
kvantna optika
Projekti
Financer:
EC - European Commission
Številka projekta:
851143
Naslov:
Intracellular lasers: Coupling of optical resonances with biological processes
Akronim:
Cell-Lasers
Financer:
ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:
P1-0099-2022
Naslov:
Fizika mehkih snovi, površin in nanostruktur
Financer:
ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:
P1-0192-2022
Naslov:
Svetloba in snov
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Deutsche Forschungsgemeinschaft
Številka projekta:
429529648
Naslov:
Quantum Cooperativity of Light and Matter
Akronim:
QuCoLiMa
Podobna dela
Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:
Nazaj