Limiting efficiencies of second-harmonic generation and cascaded χ(2) processes in quadratically nonlinear photonic nanowires
✍ Scribed by A.M. Zheltikov
- Book ID
- 103872868
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 204 KB
- Volume
- 270
- Category
- Article
- ISSN
- 0030-4018
No coin nor oath required. For personal study only.
✦ Synopsis
Quadratically nonlinear waveguides with subwavelength core dimensions are shown to provide limiting efficiencies of second-harmonic generation and three-wave mixing, as well as cascaded v (2) nonlinear-optical interactions. Small-core waveguides made of highv (2) materials, such as gallium arsenide and indium phosphide, are shown to allow anomalous dispersion to be achieved within the range of wavelengths from 1.3 to 2.0 lm, with the wavelength of zero group-velocity dispersion controlled by the size of the waveguide core.
📜 SIMILAR VOLUMES
Melilite-type Ba 2 MgGe 2 O 7 was found to be an attractive, simultaneously χ (2) -and χ (3) -active nonlinear optical crystal. Under one-micron picosecond pumping we observed several manifestations of nonlinear interactions, namely almost sesqui-octave Stokes and anti-Stokes lasing combs, collinear
Second, 3rd, and 4th order harmonics from a Fourier-transform-limited nanosecond CO 2 laser beam at 10.6 lm were efficiently generated within one or two GaSe crystals. The peak output powers were determined to be 443, 23, and 2 W, respectively, corresponding to conversion efficiencies of 3.0%, 0.13%
We report the experimental investigation of nonlinear cascaded lasing χ^(3)^ ↔ χ^(2)^ effects in UV and visible ranges and high-order Stokes and anti-Stokes generation covering spectral space of about 18000 cm^-1^ by stimulated Raman scattering and multi-wave mixing processes under one-micron picose