By Anatoly Zayats
Publication Date: 2013-07-15
Number of Pages: 336
This ebook, edited by means of of the main revered researchers in plasmonics, offers an outline of the present nation in plasmonics and plasmonic-based metamaterials, with an emphasis on lively functionalities and a watch to destiny advancements. This e-book is multifunctional, invaluable for newbies and scientists drawn to purposes of plasmonics and metamaterials in addition to for tested researchers during this multidisciplinary zone.
Read Online or Download Active Plasmonics and Tuneable Plasmonic Metamaterials PDF
Similar physics books
Rotating black holes, as defined via the Kerr space-time, are the most important to realizing the main violent and full of life phenomena within the Universe, from the center cave in of big supernova explosions generating robust bursts of gamma rays, to supermassive black gap engines that energy quasars and different energetic galactic nuclei.
Each 3 years, the major specialists in detectors for astronomy assemble jointly to interchange info and shape specialist relationships. This sequence of conferences is entitled medical Detectors for Astronomy. The assembly has been held six occasions, with the final 4 publishing hardcover lawsuits.
Extra resources for Active Plasmonics and Tuneable Plasmonic Metamaterials
35)] is satisfied], the system will spase. The same is true for nonpropagating modes whose frequencies are in the band gap. In fact, at the band edge or in the band gap, a metamaterial with gain is similar to a DFB laser —see also the next paragraph. There has been a recent experimental observation  of an electrically pumped DFB nanolaser (spaser) working in the communication frequency range at room temperature. This spaser generates on a stop-band (nonpropagating) plasmonic mode, that is, a mode with frequency within the band gap.
S = (γn + γs ) We will also examine the spaser as a bistable (logical) amplifier. One of the ways to set the spaser in such a mode is to add a saturable absorber. 19) one has to set g = 0. Numerical examples are given for a silver nanoshell where the core and the external dielectric have the same permittivity of εd = 2; the permittivity of silver is adopted from Reference 69. 4 × 1020 cm−3 , which is realistic for dye molecules but may be somewhat high for semiconductor QDs that were proposed as the chromophores  and used in experiments .
As we see from panel (c), independent of the initial number of SPs, the spaser always generates a series of SP pulses, of which only the first pulse is large (at or above the logical level of Nn ∼ 100). ) The underlying mechanism of such a response is the rapid depletion of the inversion seen in panel (d), where energy is dissipated in the metal of the spaser. The characteristic duration of the SP pulse ∼ 100 fs is defined by this depletion, controlled by the energy transfer and SP relaxation rates.
Active Plasmonics and Tuneable Plasmonic Metamaterials by Anatoly Zayats