"Diamond"@en . "Converging counter-propagating beams"@en . "Optical trapping"@en . "Circular dichroism"@en . "Diffractive Fresnel lenses"@en . "Metasurfaces"@en . . . "Giessen" . "Harald" . "Coherent spectroscopy"@en . . "Plasmonic nanocircuits"@en . "Diffractive optical elements"@en . "Plasmonics"@en . "Microstructured fiber"@en . "Two photon polymerization"@en . . "Harald Giessen" . "Photonics"@en . "Quantum emitter"@en . "Chiral nanostructures"@en . "Nanowire assemblies"@en . <0000-0002-4270-3850> .