Search

Your search keyword '"Andreani, L.C."' showing total 113 results
Start Over Author "Andreani, L.C."
113 results on '"Andreani, L.C."'

107. Photonic bandgap waveguide structures.

Author

Wehrspohn, R.B., Jamois, C., Schilling, J., Geppert, T., Muller, F., Gosele, U., Leonard, S.W., van Driel, H., Agio, M., Andreani, L.C., Kramper, P., Sandoghdar, V., Hermann, C., and Hess, O.

Published
2003
Full Text
View/download PDF

112. Direct third harmonic generation due to quadratic cascaded processes in periodically poled crystals

Author

Das, S.K., Mukhopadhyay, S., Sinha, N., Saha, A., Datta, P.K., Saltiel, S.M., and Andreani, L.C.

Subjects
*CRYSTAL optics, *DOUBLE refraction, *ACOUSTOOPTICAL devices, *NONLINEAR programming
Abstract

Abstract: We report the first, according to our knowledge, experiment for direct third harmonic (TH) generation in periodically poled quadratic crystals. TH radiation of a diode array pumped and acousto-optically Q-switched Nd:YVO4 laser is generated in a 25mm long periodically poled lithium niobate (PPLN) crystal of period 7.0μm. A theoretical model is developed that explains the experimental results. It predicts that the efficient phase-matched direct TH generation in periodically poled structures with duty factor 0.5 requires even order quasi-phase matching. In contrast to the similar experiments in bulk birefringence crystals, where direct phase matched TH signal is the sum of the contribution of both intrinsic and cascaded cubic nonlinearities, in periodically poled quadratic crystals only cascaded cubic nonlinearity contributes to the direct phase-matched TH signal. [Copyright &y& Elsevier]

Published
2006
Full Text
View/download PDF

113. Linear optical properties and photonic mode dispersion in GaAs/AlGaAs photonic crystal slabs

Author

Patrini, M., Galli, M., Agio, M., Andreani, L.C., Bajoni, D., Guizzetti, G., Businaro, L., Di Fabrizio, E., Romanato, F., and Passaseo, A.

Subjects
*CRYSTALS, *WAVEGUIDES
Abstract

GaAs/AlGaAs photonic crystal waveguides with unconventional tilted-square lattices and different filling factors are fully investigated by means of variable angle reflectance spectroscopy, which yields the photonic band dispersion, and theoretical calculation of both reflectance spectra and photonic band structure. [Copyright &y& Elsevier]

Published
2003
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results