Semiconductor Nanotechnology by Stephen M. Goodnick & Anatoli Korkin & Robert Nemanich

Author:Stephen M. Goodnick & Anatoli Korkin & Robert Nemanich
Language: eng
Format: epub
ISBN: 9783319918969
Publisher: Springer International Publishing

4.3.3 Laser Media Produced by MLE Method

An example of laser action in MLE structures is shown in Fig. 4.11.

Fig. 4.11Example of laser action in MLE structures. Left is a molecular self-assembly in the vapor-gas phase of a precursor (amino-phenyl-azo-pyridinium) on a modified glass substrate. On the right is the generation of the 2nd harmonic upon excitation by light of a wavelength of 1064 nm. The spectrum of the assembled structure is shown on the right side of the inset

This structure cannot be obtained by liquid-liquid methods due to the insolubility of the precursor (amino-phenyl-azo-pyridinium) and vacuum methodologies that are not capable of creating a chemical bond between the fungicide-bonded silicone substrate and the active molecule. The main characteristic of MLE method is the ability to create stable structures that, from the point of view of their stability, behave in the same way as their inorganic counterparts (e.g., atomic layer epitaxy method).

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