Biomedical subjects

Neil G R Broderick

Publications and source records attributed to Neil G R Broderick.

2 recordsLinked to original sources

PubMed2006

Guided-wave second-harmonic generation in a LiNbO3 nonlinear photonic crystal.

We demonstrate twin-beam second-harmonic generation from telecommunications wavelengths in an optimized buried reverse proton exchanged planar waveguide made in 2D hexagonally poled LiNbO3. Experiments carried out with a nanosecond narrow-bandwidth, high-power fiber source thoroughly explored the response of the nonlinear photonic crystal device in terms of its power, wavelength, and angle tunability.

Journal Article↗

PubMed2005

Harmonic generation in a two-dimensional nonlinear quasi-crystal.

Second-harmonic generation in a two-dimensional nonlinear quasi-crystal is demonstrated for the first time to our knowledge. Temperature and wavelength tuning of the crystal reveal the uniformity of the pattern while angle tuning reveals the dense nature of the crystal's Fourier spectrum. These results compare well with theoretical predictions showing the excellent uniformity of the crystal and suggest that more-complicated nonlinear holograms should be possible.

Journal Article↗