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Title: Surface plasmon amplification by stimulated emission of radiation (SPASER)

Abstract

A nanostructure is used to generate a highly localized nanoscale optical field. The field is excited using surface plasmon amplification by stimulated emission of radiation (SPASER). The SPASER radiation consists of surface plasmons that undergo stimulated emission, but in contrast to photons can be localized within a nanoscale region. A SPASER can incorporate an active medium formed by two-level emitters, excited by an energy source, such as an optical, electrical, or chemical energy source. The active medium may be quantum dots, which transfer excitation energy by radiationless transitions to a resonant nanosystem that can play the same role as a laser cavity in a conventional laser. The transitions are stimulated by the surface plasmons in the nanostructure, causing the buildup of a macroscopic number of surface plasmons in a single mode.

Inventors:
 [1];  [2]
  1. Atlanta, GA
  2. Ramat Hasharon, IL
Issue Date:
Research Org.:
Ramot At Tel-Aviv University Ltd (Tel-Aviv, IL) The Georgia State University Research Foundation (Atlanta, GA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1013880
Patent Number(s):
7569188
Application Number:
10/751,368
Assignee:
Ramot At Tel-Aviv University Ltd (Tel-Aviv, IL); The Georgia State University Research Foundation (Atlanta, GA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FG02-01ER15213
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Stockman, Mark I, and Bergman, David J. Surface plasmon amplification by stimulated emission of radiation (SPASER). United States: N. p., 2009. Web.
Stockman, Mark I, & Bergman, David J. Surface plasmon amplification by stimulated emission of radiation (SPASER). United States.
Stockman, Mark I, and Bergman, David J. Tue . "Surface plasmon amplification by stimulated emission of radiation (SPASER)". United States. https://www.osti.gov/servlets/purl/1013880.
@article{osti_1013880,
title = {Surface plasmon amplification by stimulated emission of radiation (SPASER)},
author = {Stockman, Mark I and Bergman, David J},
abstractNote = {A nanostructure is used to generate a highly localized nanoscale optical field. The field is excited using surface plasmon amplification by stimulated emission of radiation (SPASER). The SPASER radiation consists of surface plasmons that undergo stimulated emission, but in contrast to photons can be localized within a nanoscale region. A SPASER can incorporate an active medium formed by two-level emitters, excited by an energy source, such as an optical, electrical, or chemical energy source. The active medium may be quantum dots, which transfer excitation energy by radiationless transitions to a resonant nanosystem that can play the same role as a laser cavity in a conventional laser. The transitions are stimulated by the surface plasmons in the nanostructure, causing the buildup of a macroscopic number of surface plasmons in a single mode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {8}
}

Works referenced in this record:

Localization versus Delocalization of Surface Plasmons in Nanosystems: Can One State Have Both Characteristics?
journal, September 2001


Surface-Enhanced Emission from Single Semiconductor Nanocrystals
journal, August 2002


Enhanced Luminescence of CdSe Quantum Dots on Gold Colloids
journal, December 2002


Surface-Plasmon-Coupled Emission of Quantum Dots
journal, January 2005