}
function getLink() {
var retVal="unknkown image";
var rt1 = "";
var rt2 = "";
var rt3 = "";
var rt4 = "";
var rt5 = "";
var rt6 = "";
var rt7 = "";
var rt8 = "";
var rt9 = "";
retVal=eval("rt"+pic);
return retVal;
}
function getText() {
var retVal="unknown image";
var rt1 = "
Micro lasers
" +
" An optical mushroom cavity.
"+
" Directional emission of light is obtained from a mushroom shaped microcavity where the differential trick is to let the light escape the "+
"cavity but subsequently re-enter in order to focus it to specific directions.";
var rt2 = "
Random lasers
" +
" A micro random laser.
"+
" Scanning electron microscope image of a micron-sized cluster of ~ 10,000 ZnO nanoparticles. Optical excitation of ZnO nanoparticles leads to lasing in the cluster.";
var rt3 = "
Structural color
" +
//" Male Plum-throated Cotinga (Cotinga maynana, Cotingidae).
"+
" Male Eastern Bluebird (Sialia sialis, Turdidae).
"+
" Channel-type beta-keratin and air nanostructure from back contour feather barbs of S. sialis."+
" Photo credits: Ken Thomas (image in the public domain).";
var rt4 = "
Micro lasers
" +
" A chaotic microcavity laser with a high quality factor and directional output.
"+
" A scanning electron micrograph of a GaAs microdisk whose shape is described by the limacon of Pascal. Although the intracavity ray dynamics is predominantly chaotic, it produces universal directionality of all lasing modes.";
var rt5 = "
Nanoplasmonics
" +
" Spatial distribution of electromagnetic field intensity across metal-dielectric nanocompsites measured by a near-field scanning optical microscope. The hot spots show strong"+
" localization of surface plasmons.";
var rt6 = " UV Photonic Crystal Light Sources
" +
" The first UV photonic crystal laser.
"+
" Top-view scanning electron micrograph of a triangular lattice of air holes in a ZnO slab, fabricated by focused ion beam etching. The lattice constant is 130 nm and the air cylinder radius is 33 nm. Inset: Structural Fourier transform reveals the long-range periodicity in the six maxima at the positions corresponding to the perfect lattice.";
var rt7 = "
Mesoscopic transport of photons
" +
" A spectral-temporal image of laser emission from ZnO powder.
"+
" The temporal shifts of lasing frequencies result from dynamic change of the refractive index of ZnO due to the third-order optical nonlinearity.";
var rt8 = "
Biomimetics
" +
"Scanning electron micrograph of the top layer of the film showing there is no long range order.
" +
" Biomimetic films display structural color."+
" Sphere-type beta-keratin and air nanostructure from back contour feather barbs of C. maynana.";
// " Photo credits: Thomas Valqui (reproduced with permission).";
var rt9 = " Nano lasers
" +
" A subwavelength all-dielectric laser.
"+
" Tilt-view scanning electron microscope image of a GaAs disk on top of an AlGaAs pedestal. The disk diameter is 627 nm and the"+
" disk thickness is 265 nm. InAs quantum wells embedded in the GaAs disk provides optical gain for lasing under optical pumping. The"+
" laser emission wavelength (in vacuum) is 870 nm.";
retVal=eval("rt"+pic);
return retVal;
}
slideshow();
//-->