Band structure and broadband compensation of absorption by amplification in layered optical metamaterials
Journal Article
·
· Journal of Experimental and Theoretical Physics
- St. Petersburg State University of Information Technologies, Mechanics and Optics (Russian Federation)
The frequency dependence of the gain required to compensate for absorption is determined for a layered structure consisting of alternating absorbing and amplifying layers. It is shown that the fulfillment of the same conditions is required for the existence of a band structure consisting of alternating bands allowed and forbidden for optical radiation propagation in the frequency-wave vector parametric region. Conditions are found under which the gain required for compensation is smaller than thresholds for absolute (parasitic lasing) and convective (waveguide amplification of radiation) instabilities.
- OSTI ID:
- 22027872
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 114, Issue 5; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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