Figure 1
From: Polymeric photonic molecule super-mode lasers on silicon
(a) Scanning electron micrograph of a photonic molecule consisting of two coupled microdisk resonators with radii of each 25 µm and a coupling-gap width of 340 nm structured by e-beam lithography, standing on silicon pedestals. (b) Deposition of an additional layer of PPX after the lithographic structuring can significantly decrease the coupling-gap width below 150 nm. The inset shows a scanning electron micrograph of the cross-section of the coupling region at the minimal distance between the microdisks fabricated by a focused ion beam cut. PPX, poly(p-xylylene).
