Dorian Alden (Avtor), Tinkara Troha (Avtor), Ronny Kirste (Avtor), Seiji Mita (Avtor), Qiang Guo (Avtor), Axel Hoffmann (Avtor), Marko Zgonik (Avtor), Ramón Collazo (Avtor), Zlatko Sitar (Avtor)

Povzetek

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.

Ključne besede

nelinearna optika;optični valovodi;frekvenčno podvajanje;polprevodniki;nonlinear optics;optical waveguides;second harmonic generation;semiconductors;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 535.18
COBISS: 3297380 Povezava se bo odprla v novem oknu
ISSN: 0003-6951
Št. ogledov: 839
Št. prenosov: 335
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: nelinearna optika;optični valovodi;frekvenčno podvajanje;polprevodniki;
Konec prepovedi (OpenAIRE): 2020-03-14
Strani: str. 103504-1-103504-4
Letnik: ǂVol. ǂ114
Zvezek: ǂiss. ǂ10
Čas izdaje: 2019
DOI: 10.1063/1.5087058
ID: 11055173