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6CCVD Research

The effect of the substrate on the damage threshold of gold nano-antennas by a femtosecond laser

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2020-09-01
JournalMaterials Research Express
AuthorsMonir Morshed, Aman Haque, Haroldo T. Hattori
InstitutionsUNSW Sydney, University of Canberra
Citations1

Abstract

Section titled ā€œAbstractā€

Abstract Gold nano-antennas with silica substrate may not be suitable for high power applications such as heat resisted magnetic recording, solar thermophotovoltaics, and nano-scale heat transfer systems. When a laser beam reaches to these nano-antennas, part of the light is absorbed by the metallic regions, leading to a temperature rise of the device. If these devices reach a temperature beyond its Tamman temperature (the temperature at which sintering of atoms or molecules start to occur), the antenna can be damaged. One strategy to allow the antenna to work at higher fluences (energy density) is to employ substrates that can quickly carry the heat away from the antennas. In this paper, we show that high thermal conductivity substrates, such as diamond, can allow the antenna to withstand 20 times higher fluence than a low thermal conductivity silica substrate.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2004 - Gap-dependent optical coupling of single ā€˜Bowtieā€™ nanoantennas resonant in the visible [Crossref]
  2. 2005 - Nanoantennas for light emission [Crossref]
  3. 2009 - Optical antennas [Crossref]
  4. 2007 - Bowtie plasmonic quantum cascade laser antenna [Crossref]
  5. 2014 - Single-molecule detection and radiation control in solutions at high concentrations via a heterogeneous optical slot antenna [Crossref]
  6. 2007 - Bow-tie optical antenna probes for single-emitter scanning near-field optical microscopy [Crossref]
  7. 2008 - Nanometre-scale germanium photodetector enhanced by a near-infrared dipole antenna [Crossref]
  8. 2010 - Resonant germanium nanoantenna photodetectors [Crossref]
  9. 2012 - Application of plasmonic bowtie nanoantenna arrays for optical trapping, stacking, and sorting [Crossref]
  10. 2015 - Efficient coupling of an antenna-enhanced nanoLED into an integrated InP waveguide [Crossref]

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