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Quasi-phase-matched second harmonic generation of UV light using AlN waveguides
ID
Alden, Dorian
(
Avtor
),
ID
Troha, Tinkara
(
Avtor
),
ID
Kirste, Ronny
(
Avtor
),
ID
Mita, Seiji
(
Avtor
),
ID
Guo, Qiang
(
Avtor
),
ID
Hoffmann, Axel
(
Avtor
),
ID
Zgonik, Marko
(
Avtor
),
ID
Collazo, Ramón
(
Avtor
),
ID
Sitar, Zlatko
(
Avtor
)
PDF - Predstavitvena datoteka,
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MD5: 362A29D73B1BCB505817590061FD8BF6
Galerija slik
Izvleček
As an alternative to electrically injected diodes, UV light emission can be obtained via second harmonic generation (SHG). In weakly birefringent materials such as aluminum nitride (AlN), the phase matching of the driving and second harmonic waves can be achieved by the quasi-phase-matching (QPM) technique, where the polarity of the material is periodically changed commensurate with the coherence wavelength. QPM also allows the use of the highest nonlinear susceptibility, and therefore, higher conversion efficiencies are possible. In this work, the QPM SHG of UV light in AlN lateral polar structure-based waveguides is demonstrated. The peak intensity of the frequency doubled laser light was measured at 344nm and 472nm wavelengths, in agreement with dispersion-based theoretical predictions. These results confirm the potential of III-nitride-based lateral polar structures for quasi-phase-matched nonlinear optics and for frequency doubling media for UV light generation.
Jezik:
Angleški jezik
Ključne besede:
nonlinear optics
,
optical waveguides
,
second harmonic generation
,
semiconductors
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FMF - Fakulteta za matematiko in fiziko
Leto izida:
2019
Št. strani:
Str. 103504-1-103504-4
Številčenje:
Vol. 114, iss. 10
PID:
20.500.12556/RUL-106753
UDK:
535.18
ISSN pri članku:
0003-6951
DOI:
10.1063/1.5087058
COBISS.SI-ID:
3297380
Datum objave v RUL:
15.03.2019
Število ogledov:
1829
Število prenosov:
571
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Applied physics letters
Skrajšan naslov:
Appl. phys. lett.
Založnik:
American Institute of Physics
ISSN:
0003-6951
COBISS.SI-ID:
24984832
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
nelinearna optika
,
optični valovodi
,
frekvenčno podvajanje
,
polprevodniki
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