2-PHOTON RESONANT 3RD-HARMONIC GENERATION IN POLYSILANES

被引：26

作者：

HASEGAWA, T

IWASA, Y

KISHIDA, H

KODA, T

TOKURA, Y

TACHIBANA, H

KAWABATA, Y

机构：

[1] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

[2] NATL CHEM LAB IND,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.45.6317

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Third-order nonlinear-optical susceptibility spectra \chi(3)(-3-omega;omega,omega,omega)\ have been obtained for poly(dihexylsilane) (PDHS) and poly(dibutylsilane) (PDBS) films by third-harmonic generation (THG) measurements for a fundamental photon energy region from 1.90 to 2.15 eV, which covers the two-photon absorption (TPA) for PDHS but not for PDBS. The \chi(3)\ spectrum for PDHS shows a prominent peak at about 2.08 eV with a maximum value of about 2.3 x 10(-12) esu, while there is no enhancement effect in PDBS in the same fundamental photon energy region. These results provide direct evidence for the two-photon-resonant THG process in polysilanes due to the one-photon-forbidden 1Ag exciton detected by TPA and electroabsorption measurements.

引用

页码：6317 / 6320

页数：4

共 24 条

[1] ABE S, IN PRESS PHYS REV B
[2] NONLINEAR SPECTROSCOPY IN POLYDIACETYLENES
CHOLLET, PA
KAJZAR, F
MESSIER, J
[J]. SYNTHETIC METALS, 1987, 18 (1-3) : 459 - 464
[3] ESSENTIAL-STATES MECHANISM OF OPTICAL NONLINEARITY IN PI-CONJUGATED POLYMERS
DIXIT, SN
GUO, DD
MAZUMDAR, S
[J]. PHYSICAL REVIEW B, 1991, 43 (08): : 6781 - 6784
[4] SPECTRUM OF CHI(3)(-3-OMEGA-OMEGA, OMEGA, OMEGA, OMEGA) IN POLYACETYLENE - AN APPLICATION OF THE FREE-ELECTRON LASER IN NONLINEAR OPTICAL SPECTROSCOPY
FANN, WS
BENSON, S
MADEY, JMJ
ETEMAD, S
BAKER, GL
KAJZAR, F
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (13) : 1492 - 1495
[5] ANALYSIS OF EXCITONIC RESONANT EFFECT IN THE 3RD-ORDER NONLINEAR OPTICAL SUSCEPTIBILITY OF POLYDIACETYLENE FILMS
HASEGAWA, T
ISHIKAWA, K
KODA, T
TAKEDA, K
KOBAYASHI, H
KUBODERA, K
[J]. SYNTHETIC METALS, 1991, 43 (1-2) : 3151 - 3156
[6] HASEGAWA T, IN PRESS SYNTH MET
[7] X(3) OF TRANS-(CH)X - EXPERIMENTAL-OBSERVATION OF 2AG EXCITED-STATE
KAJZAR, F
ETEMAD, S
BAKER, GL
MESSIER, J
[J]. SYNTHETIC METALS, 1987, 17 (1-3) : 563 - 567
[8] 3RD-HARMONIC GENERATION IN LIQUIDS
KAJZAR, F
MESSIER, J
[J]. PHYSICAL REVIEW A, 1985, 32 (04): : 2352 - 2363
[9] NONLINEAR OPTICAL-PROPERTIES OF THIN-FILMS OF POLYSILANE
KAJZAR, F
MESSIER, J
ROSILIO, C
[J]. JOURNAL OF APPLIED PHYSICS, 1986, 60 (09) : 3040 - 3044
[10] KANETAKE T, 1989, APPL PHYS LETT, V54, P2289

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