Investigation of second order optical nonlinearity at the surface of GaP nanowaveguides
2013 (English)In: 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013, IEEE Computer Society, 2013, 6800994- p.Conference paper (Refereed)
Nonlinear optical properties of semiconductor nanowaveguides/nanowires are determined by both their crystal symmetry and geometry. For diameters comparable to the wavelength, high contrast of refractive index between the nanostructure and surrounding air leads to strong optical anisotropy . It has been shown that for nanowaveguides with certain diameters (depending on the wavelength), the effect of electric field with polarization normal to the surface becomes significant . The induced surface effect can consequently be utilized for second harmonic generation (SHG) in nanowaveguide. Nonlinear optical susceptibility at the surface results from the material discontinuity and electric quadrupole contribution , whereas the bulk nonlinearity is defined by the crystal symmetry.
Place, publisher, year, edition, pages
IEEE Computer Society, 2013. 6800994- p.
Crystal symmetry, Electric fields, Electron optics, Nonlinear optics, Quantum electronics, Refractive index, Semiconductor lasers, Electric quadrupole contributions, High contrast, Material discontinuity, Nanowaveguides, Non-linear optical properties, Nonlinear optical susceptibilities, Second order optical nonlinearity, Surface effect, Surfaces
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-147267DOI: 10.1109/CLEOE-IQEC.2013.6800994ISI: 000355316300403ScopusID: 2-s2.0-84900344192ISBN: 978-1-4799-0593-5OAI: oai:DiVA.org:kth-147267DiVA: diva2:729574
2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013; Munich; Germany; 12 May 2013 through 16 May 2013
QC 201406262014-06-262014-06-252015-12-09Bibliographically approved