Journal
ACS NANO
Volume 4, Issue 12, Pages 7582-7586Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn102280m
Keywords
graphene; laser; Q-switcher; composites
Categories
Funding
- National Natural Science Foundation of China [51025210, 50721002, 60978027]
- Grant for State Key Program of China [2010CB630702]
- Program of Introducing Talents of Discipline to Universities in China (111 program)
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Graphene grown by thermal decomposition of a two-Inch 6H silicon carbide (SIC) wafers surface was used to modulate a large energy pulse laser. Because of its saturable absorbing properties, graphene was used as a passive Q-switcher, and because of its high refractive index the SIC substrate was used as an output coupler. Together they formed a setup where the passively Q-switched neodymium-doped yttrium aluminum garnet (Nd: YAG) crystal laser was realized with the pulse energy of 159.2 nJ. Our results illustrate the feasibility of using graphene as an inexpensive Q-switcher for solid-state lasers and its promising applications in integrated optics.
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