Vertical-cavity surface-emitting resonances in photonic crystal films

Pottage, J.M.; Silvestre, Enrique; Russell, P. St. J.

doi:10.1364/josaa.18.000442

Cited by 37 publications

(17 citation statements)

References 7 publications

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“…First, the characterization of the photonic band structure, or dispersion relation (k), was carried out using an angularly resolved transmission and reflection surface coupling technique. [42][43][44][45]35,22,16,46 In this technique the 1D PhC is used to couple incident light into the resonant modes. The periodicity of the dielectric here provides the necessary in-plane wave vector enhancement via a reciprocal lattice vector G. That is, in the plane of the PhC:…”

Section: Sample and Setupsmentioning

confidence: 99%

Giant second-harmonic generation in a one-dimensional GaN photonic crystal

et al. 2004

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In order to determine the angular geometry that satisfies quasi-phase matching conditions for enhanced second-harmonic generation (SHG), the equi-frequency surfaces of the resonant photonic modes (that lie above the light line) of a one-dimensional GaN photonic crystal have been experimentally and theoretically studied as a function of frequency, angle of incidence, and azimuthal direction. Enhancement of the SHG has been observed when the angular configuration satisfies the quasi-phase matching conditions, i.e., when both the fundamental and second-harmonic fields coincide with resonant modes of the photonic crystal. The SHG enhancement achieved to the double resonance was 5000 times with respect to the unpatterned GaN layer. A smaller, but still substantially enhanced SHG level was also observed when the fundamental field is coupled into a resonant mode, while the second-harmonic field is not

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Section: Sample and Setupsmentioning

confidence: 99%

Giant second-harmonic generation in a one-dimensional GaN photonic crystal

et al. 2004

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“…The EFS are labelled s or p by considering whether the mode is excited as either s or p at °=0 ϕ . In the case of the 1D GaN PhC the EFS describe ellipses deformed near the X point, whereas in the case of the 2D GaN PhC, the EFS are more complex [27][28][29][30][31][32][34] The curves show the results of the numerical calculations, which are found to be in excellent agreementIn-Plane Wavevector (cm -…”

mentioning

confidence: 62%

“…The EFS are obtained by the intersection of the dispersion surfaces and the horizontal plane associated with a constant value ofω . [27][28][29][30][31][32][33][34] Cowan and Young 18 have studied theoretically the SHG produced by coupling of both the fundamental and the SH fields into resonant Bloch modes. They concluded that by optimising the photonic structure, enhancement by up to six orders of magnitude may be obtained.…”

Section: Methodsmentioning

confidence: 99%

Enhancement of second harmonic in one-dimensional and two-dimensional epitaxial GaN-based photonic crystals

Torres¹,

Vecchi

Coquillat³

et al. 2004

SPIE Proceedings

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The second-harmonic field generated has been measured in reflection from the surface of one-dimensional and twodimensional photonic crystals etched into a GaN layer. A very large second-harmonic enhancement is observed when simultaneously the incident beam at the fundamental frequency ω excites a resonant Bloch mode and the secondharmonic field generated is coupled into a resonant Bloch mode at 2ω. A smaller, but still substantially enhanced, second-harmonic generation level was also observed when the fundamental field was coupled into a resonant mode, while the second-harmonic field was not. By using calculated and experimental equifrequency surfaces, it is possible to identify the geometrical configurations that will allow quasi-phase matching to be satisfied -and observed experimentally in the available wavelength tuning range of the laser. The extended transparency window of III-nitride wide-bandgap semiconductors, coupled with large non linearities, is an appealing feature pointing towards the control and manipulation of light in photonic structures.

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“…8 -10 to recover them. Studies have shown that the field associated to guided waves in a multilayer 6 or to guided Bloch waves in a MBG, 16 can be very important as compared to that of the continuum spectrum. Hence, the emitter may couple to them preferentially.…”

Section: Highly Directive Light Sources Using Two-dimensional Photonimentioning

confidence: 99%