OBSERVATION OF COHERENT OPTICAL PHONONS IN BII3

被引：11

作者：

MISHINA, T ^{[1
]}

MASUMOTO, Y ^{[1
]}

FLUEGEL, B ^{[1
]}

MEISSNER, K ^{[1
]}

PEYGHAMBARIAN, N ^{[1
]}

机构：

[1] UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.46.4229

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Resonant coherent lattice vibrations in the vicinity of the indirect absorption edge in a BiI3 layered crystal are observed in a femtosecond pump-probe experiment. Coherent optical phonons that are impulsively excited by femtosecond pump pulses modulate the phase of probe pulses, causing oscillation of the probe spectrum in time. This oscillation, which has a period given by the period of the oscillation, continues for more than 100 cycles. We speculate that the coherent phonon-assisted indirect exciton transitions also contribute to the data.

引用

页码：4229 / 4232

页数：4

共 15 条

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