Negative group velocity in C60 due to RSA effect

被引：1

作者：

Yundong Zhang

Hao Wang

Lei Ma

Nan Wang

He Tian

Qiuyun Ouyang

Ping Yuan

机构：

[1] Harbin Institute of Technology,National Key Laboratory of Tunable Laser Technology, Institute of Opto

来源：

Applied Physics B | 2007年 / 89卷

关键词：

Modulation Frequency; Input Power; Group Velocity; Stimulate Brillouin Scattering; Input Intensity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We experimentally observed negative group velocity in C60 toluene solution at the wavelength of 532 nm for the first time. The observed time advancement of the modulated signal appears to be due to the RSA (reverse saturable absorption) effect of the C60 molecule. The largest time advancement of 71.65 ms was obtained with a C60 sample of 1.5-mm length with the concentration of 1.39×10-3 mol/l; the corresponding group velocity was -0.021 m/s. We could control the group velocity by adjusting the modulation frequency and the input intensity.

引用

页码：141 / 143

页数：2

共 109 条

[1]

Kasapi A.(1995)undefined Phys. Rev. Lett. 74 2447-undefined

[2]

Jain M.(1999)undefined Nature (London) 397 594-undefined

[3]

Yin G.Y.(1999)undefined Phys. Rev. Lett. 82 5229-undefined

[4]

Harris S.E.(2002)undefined Phys. Rev. Lett. 88 023602-undefined

[5]

Hau L.V.(2003)undefined Phys. Rev. Lett. 90 113903-undefined

[6]

Harris S.E.(2003)undefined Science 301 200-undefined

[7]

Dutton Z.(2004)undefined Chin. Phys. Lett. 21 87-undefined

[8]

Behroozi C.H.(2005)undefined Phys. Rev. Lett. 95 143601-undefined

[9]

Kash M.M.(2004)undefined Phys. Rev. B 70 235333-undefined

[10]

Sautenkov V.A.(2005)undefined Appl. Phys. Lett. 87 171102-undefined

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