Review Nanoholes

10 Avril 2007 , Rédigé par JW Publié dans #Nanophotonics pick

Drilling holes of nanometric dimensions in a metal film is a way conceptually simple to realize new nanophotonic components. In spite of its visible simplicity, a hole drilled in an opaque screen still inspires new perspectives of applications.

In a review published in Nature, Cyriaque Genet and Thomas Ebbesen (Institut de Science and Ingenierie Supramoleculaires, Louis Pasteur university of Strasbourg) give a detailed overview of the current understanding and exploitation of the properties of these structures. The cases of the simple nano-openings, the nano-openings surrounded with concentric engravings, and with periodic networks of nanoholes are successively approached in a very didactic way. 

The field of application of these structures is very wide, and is approached through certain specific examples. In opto-electronics, they improve the extraction of light of electroluminescent diodes and allow the development of ultrafast miniaturized silicon detectors. Biochemistry is another major domain of applications, notably through the detection of individual fluorescent molecules and enhanced infrared vibrational spectroscopy.

"Light in tiny holes"; Cyriaque Genet et Thomas W. Ebbesen, Nature 445, 39-46 (2007).