Simultaneous measurement of real and imaginary parts of nonlinear susceptibility for the verification of the Kramers-Kronig relations in femtosecond spectroscopy

被引：18

作者：

Kano, H ^{[1
]}

Kobayashi, T ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

来源：

OPTICS COMMUNICATIONS | 2000年 / 178卷 / 1-3期

基金：

日本学术振兴会;

关键词：

Sagnac interferometer; Kramers-Kronig relations; difference phase spectra; difference absorption spectra;

D O I：

10.1016/S0030-4018(00)00624-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Simultaneous measurement of continuous spectra of real and imaginary parts of complex nonlinear optical susceptibility was performed for porphyrin J-aggregates with sharp absorption peaks using a femtosecond Sagnac interferometer. A nonresonant component (chi(NR)((3))) due to a solvent and a resonant component (chi(R)((3))) due to the porphyrin J-aggregates are observed. The real and imaginary parts are compared using the Kramers-Kronig (KK) relations, which are valid for linear optical susceptibility. It is shown that chi(R)((3)) satisfies the KK relations at all delay times. On the other hand, chi(NR)((3)) does not satisfy the KK relations at zero delay time. The validity of the KK relations, which have been reported in previous papers by our group, are verified for the first time experimentally using continuous spectra. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：133 / 139

页数：7

共 22 条

[1]

ATKINS DL, 1996, J PHYS CHEM-US, V100, P14690

[2] DISPERSION RELATIONS FOR NONLINEAR RESPONSE [J].

CASPERS, WJ .

PHYSICAL REVIEW A-GENERAL PHYSICS, 1964, 133 (5A) :1249-&

[3] OPTICAL KERR EFFECT IN LIQUIDS [J].

HO, PP ;

ALFANO, RR .

PHYSICAL REVIEW A, 1979, 20 (05) :2170-2187

[4]

KANO H, 1997, P 10 INT S ULTR PROC, P104

[5]

KANO H, UNPUB DYNAMICAL INTE

[6] Linear techniques of phase measurement by femtosecond spectral interferometry for applications in spectroscopy [J].

Lepetit, L ;

Cheriaux, G ;

Joffre, M .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1995, 12 (12) :2467-2474

[7]

MAITI N, 1995, J CHEM PHYS, V99, P17159

[8] Density dependence of the spectral dielectric function across a Fano resonance [J].

Marquezini, MV ;

Kner, P ;

Bar-Ad, S ;

Tignon, J ;

Chemla, DS .

PHYSICAL REVIEW B, 1998, 57 (07) :3745-3748

[9] FEMTOSECOND TIME-RESOLVED INTERFEROMETRY FOR THE DETERMINATION OF COMPLEX NONLINEAR SUSCEPTIBILITY [J].

MINOSHIMA, K ;

TAIJI, M ;

KOBAYASHI, T .

OPTICS LETTERS, 1991, 16 (21) :1683-1685

[10]

Minoshima K., 1995, Nonlinear Optics, Principles, Materials, Phenomena, and Devices, V14, P39

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