Optical nonlinearities of CVD fabricated grapheneby z-scan technique

被引：0
|
作者：
Huang, Pi Ling [1 ]
Chen, Wan-Lin [1 ]
Peng, Ta-Wei [1 ]
Yeh, Chao-Yung [2 ]
Cheng, Wood-Hi [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 80424, Taiwan
[2] Met Ind Res & Dev Ctr, Kaohsiung, Taiwan
来源：
2014 IEEE PHOTONICS CONFERENCE (IPC) | 2014年
关键词：
SATURABLE ABSORBER; LASERS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Optical nonlinearities of single layer graphene were investigated by z-scan method with ps laser pulses at wavelength of 532 nm. In addition to saturable absorption, the inverse saturation absorption was also observed at a higher intensity level. The two-photon absorption coefficient beta and nonlinear refractive index n(2) are obtained as 0.17 to 5.4 (10(5) cm/W) and 0.8 to 10 (cm(2)/GW) respectively, while the pulse intensity was at the range of 6.5 to 97.2 (GW/cm(2)).
引用
收藏
页码：579 / 580
页数：2
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