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Exploiting the Optical Quadratic Nonlinearity of Zinc-Blende Semiconductors for Guided-Wave Terahertz Generation: A Material Comparison
被引:28
|作者:
Cherchi, Matteo
[1
,2
]
Taormina, Alberto
[3
]
Busacca, Alessandro C.
[1
,3
]
Oliveri, Roberto L.
[1
,2
]
Bivona, Saverio
[1
,2
]
Cino, Alfonso C.
[3
,4
]
Stivala, Salvatore
[3
]
Sanseverino, Stefano Riva
[3
,4
]
Leone, Claudio
[1
,2
]
机构:
[1] Univ Palermo, Consorzio Nazl Interuniv Sci Fis Mat CNISM, Unita Ric Palermo, I-90133 Palermo, Italy
[2] Univ Palermo, DIFTER, I-90128 Palermo, Italy
[3] Univ Palermo, DIEET, I-90128 Palermo, Italy
[4] CRES, I-90046 Monreale, Italy
关键词:
Frequency conversion;
optical frequency conversion;
optical materials;
optical parametric amplifiers;
optical phase matching;
optical propagation in nonlinear media;
optical pulse generation;
optical waveguides;
semiconductor materials;
semiconductor waveguides;
terahertz generation;
DIFFERENCE-FREQUENCY-GENERATION;
SECOND-HARMONIC GENERATION;
POLED LITHIUM-NIOBATE;
RADIATION;
COHERENT;
DESIGN;
LIGHT;
GAAS;
D O I:
10.1109/JQE.2009.2033821
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
We present a detailed analysis and comparison of dielectric waveguides made of CdTe, GaP, GaAs and InP for modal phase matched optical difference frequency generation (DFG) in the terahertz domain. From the form of the DFG equations, we derived the definition of a very general figure of merit (FOM). In turn, this FOM enabled us to compare different configurations, by taking into account linear and nonlinear susceptibility dispersion, terahertz absorption, and a rigorous evaluation of the waveguide modes properties. The most efficient waveguides found with this procedure are predicted to approach the quantum efficiency limit with input optical power in the order of kWs.
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页码:368 / 376
页数:9
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