Journal
ACS PHOTONICS
Volume 3, Issue 6, Pages 919-923Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.6b00111
Keywords
random lasing; gold nanostars; plasmon resonances; multiple scattering; gain
Categories
Funding
- European Research Council within the FP7 Program ActiveNP [257158]
- European Research Council (ERC) [257158] Funding Source: European Research Council (ERC)
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Huge spectral coverage of random lasing throughout the visible up to the infrared range is achieved with star-shaped gold nanoparticles (nanostars). As intrinsically broadband scattering centers, the nanostars are suspended in solutions of various laser dyes, forming randomly arranged resonators which support coherent laser modes. The narrow emission line widths of 0.13 nm or below suggest that gold nanostars provide an efficient coherent feedback for random lasers over an extensive range of wavelengths, all together spanning almost a full optical octave from yellow to infrared.
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