Ultrafast saturable absorption devices incorporating efficiently electrosprayed carbon nanotubes

Title
Ultrafast saturable absorption devices incorporating efficiently electrosprayed carbon nanotubes
Authors
추수호한원석김일두한영근이관일이상배송용원
Keywords
pulsed laser; mode-locking; carbon nanotubes; electrospray
Issue Date
2010-02
Publisher
Applied physics letters
Citation
VOL 96, NO 5, 051111-1-051111-3
Abstract
We demonstrate saturable absorption operation of single-walled carbon nanotubes CNTs deposited by an efficient electrospray process that provides target-localized deposition with a homogeneous dispersion of the nanomaterials. An improvement in deposition efficiency of 95% is achieved. CNT dispersion/deposition conditions are optimized for suppressed CNT agglomeration, thereby maximizing the nonlinear absorption of CNTs. An ultrafast saturable absorber is formed with side-polished fiber as a substrate for evanescent field interaction of propagated light with CNTs. A resultant fiber mode-locked laser is realized. The laser has output with an estimated pulse duration and repetition rate of 190.9 fs and 3.95 MHz, respectively.
URI
http://pubs.kist.re.kr/handle/201004/41883
ISSN
0003-6951
Appears in Collections:
KIST Publication > Article
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