Second-harmonic generation in local modes of a truncated periodic structure

Trull, J.; Vilaseca, R.; Martorell, Jordi; Corbalán, R.

doi:10.1364/ol.20.001746

Cited by 93 publications

(57 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[15][16][17][18][19][20][21][22] In photonic crystals, it has been shown that the second-harmonic field can be enhanced at the band edge of the photonic crystals, where the group velocity tends to zero. [15][16][17][18] In the case of defect cavities, the enhancement of SHG efficiency is achieved as a result of the large optical field amplitude of the localized defect-cavity modes.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17][18] In the case of defect cavities, the enhancement of SHG efficiency is achieved as a result of the large optical field amplitude of the localized defect-cavity modes. [20][21][22] However, both of the two properties, low group velocity and large optical field amplitude, can be simultaneously achieved in the CROW. Therefore, in this paper, as an example of the potential usefulness of CROW devices, we develop a general formalism for the SHG process in the CROW and apply this formalism to two specific SHG configurations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Propagation and second-harmonic generation of electromagnetic waves in a coupled-resonator optical waveguide

2000

View full text Add to dashboard Cite

Using both the tight-binding approximation and the finite-difference time domain method, we analyze two types of coupled-resonator optical waveguide (CROW), a coupled-microdisks waveguide and a waveguide composed of coupled defect cavities in a two-dimensional photonic crystal. We find that the dispersion relation of the CROW band can be simply described by a small coupling parameter , and the spatial characteristics of the CROW modes remain the same as those of the single-resonator high Q modes. As applications of these unique properties, we demonstrate that CROW's can be utilized in constructing waveguides without cross talk and enhance the efficiency of second-harmonic generation.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Propagation and second-harmonic generation of electromagnetic waves in a coupled-resonator optical waveguide

2000

View full text Add to dashboard Cite

show abstract

“…For example, the unusually high density of states and field localization that characterizes periodic structures increases conversion efficiency [10,11]. Less efficient, but equally important and useful for surface characterization and sensing are nonlinear processes originating from metallic surfaces.…”

mentioning

confidence: 99%

Harmonic generation in multiresonant plasma films

et al. 2013

View full text Add to dashboard Cite

We investigate second and third harmonic generation in a slab of material that displays plasma resonances at the pump and its harmonic frequencies. Near-zero refractive indices and local field enhancement can deplete the pump for kW/cm 2 incident powers, without resorting to other resonant photonic mechanisms. We show that low-threshold, highly-efficient nonlinear processes [3][4][5][6][7]. The path toward efficient frequency conversion processes has thus retained its fundamental importance through the years and continues to be the focus of considerable basic research activity. High efficiency

show abstract

“…The recent investigation of frequency doubling has shown that the effectiveness of SHG in a photonic bandgap material, doped with ( ) 2 χ medium, may be essentially larger than the SHG effectiveness stipulated by an equal length of phase-matched bulk homogeneous material [151]. In a periodic structure [152] the pump pulse propagates through the band gap device, formed by dielectric layers with alternating high and low values of refractive index.…”

Section: Conversion Of Waves In Subwavelength Dielectric Layersmentioning

confidence: 99%