Application of Optical Kerr Gate with SrTiO3 Crystal in Acquisition of Gated Spectra from a Supercontinuum
YAN Li-He1,2, JIA Sen1, SI Jin-Hai1**, MATSUO Shigeki2, CHEN Feng1, HOU Xun1
1Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an 710049 2Department of Ecosystem Engineering, The University of Tokushima, 2-1 Minamijosanjimacho, Tokushima 770-8506, Japan
Application of Optical Kerr Gate with SrTiO3 Crystal in Acquisition of Gated Spectra from a Supercontinuum
YAN Li-He1,2, JIA Sen1, SI Jin-Hai1**, MATSUO Shigeki2, CHEN Feng1, HOU Xun1
1Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an 710049 2Department of Ecosystem Engineering, The University of Tokushima, 2-1 Minamijosanjimacho, Tokushima 770-8506, Japan
We investigate the optical Kerr effect of SrTiO3 (STO) crystal, of which the nonlinear response time was measured to be less than 200 fs, while the nonlinear refractive index is estimated to be 2.16×10−15 cm2/W. Using the optical Kerr gate (OKG) technique with an STO crystal as the Kerr medium, we obtain narrow-bandwidth and symmetric gated spectra from a supercontinuum generated in distilled water by a femtosecond laser. The experimental results show superiority compared with the gated spectra obtained using OKG with CS2 as the Kerr medium, demonstrating that STO crystal is a promising OKG medium.
We investigate the optical Kerr effect of SrTiO3 (STO) crystal, of which the nonlinear response time was measured to be less than 200 fs, while the nonlinear refractive index is estimated to be 2.16×10-15 cm2/W. Using the optical Kerr gate (OKG) technique with an STO crystal as the Kerr medium, we obtain narrow-bandwidth and symmetric gated spectra from a supercontinuum generated in distilled water by a femtosecond laser. The experimental results show superiority compared with the gated spectra obtained using OKG with CS2 as the Kerr medium, demonstrating that STO crystal is a promising OKG medium.
YAN Li-He, JIA Sen, SI Jin-Hai, MATSUO Shigeki, CHEN Feng, HOU Xun. Application of Optical Kerr Gate with SrTiO3 Crystal in Acquisition of Gated Spectra from a Supercontinuum[J]. 中国物理快报, 2012, 29(7): 74207-074207.
YAN Li-He, JIA Sen, SI Jin-Hai, MATSUO Shigeki, CHEN Feng, HOU Xun. Application of Optical Kerr Gate with SrTiO3 Crystal in Acquisition of Gated Spectra from a Supercontinuum. Chin. Phys. Lett., 2012, 29(7): 74207-074207.
2012, Vol. 29 
