We give some perspectives on the possibilities for application of the
bacteriorhodopsin (BR) molecule in the development of nanoelectronic devices in
conjunction with photonic crystals—materials with inhibited photonic band. This
involves the use of a single BR molecule by ‘changing’ the photon gradient
formation with externally initiated electric fields, preserving the mechanisms of
negative reverse communication, or the use of an intermolecular mechanism of
photo transitions and dependence on the electric field. Greatly enhanced optical
responses, linear and nonlinear, in metal nanocomposites and nanodiamond
containing nanoscale surface features have been intensively studied in recent
years. These results foreshadow fascinating possibilities for linear and nonlinear
local spectroscopy of single molecules. Use of photonic crystals (at present the
only technologically realized three-dimensional photonic crystals are the opal
matrices) suggests the possible application of a number of physical phenomena.
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