کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1494667 | 992916 | 2011 | 4 صفحه PDF | دانلود رایگان |
Chirowaveguides, planar waveguides with a chiral core, are made of a chiral organo-modified silane sol–gel material. The losses, optical rotation (OR), absorption spectra and circular dicroism (CD) are measured and discussed. The optical activity for the organic chiral molecule 1,1′-binaphtyl-2,2′-dyil hydrogen phosphate is preserved in solid thin films. The specific OR of the film material is 11°/mm at λ = 488 nm. It is shown that the prism coupling, known as m-line technique, is not appropriated to put into evidence the polarization feature of the chirowaveguides.
► Hybrid chiral (SiO2/binaphtyl) thin film were achieved via solgel process.
► High isotropic optical rotation, from 4.3° @ 633 nm up to 10°/mm @ 514 nm, is measured.
► Theory predicts elliptically polarized modes for the 3 μm thicker films.
► Prism coupling is unsuitable to put into evidence this polarisation feature.
Journal: Optical Materials - Volume 34, Issue 2, December 2011, Pages 347–350