BAND-EDGE REFRACTIVE OPTICAL NONLINEARITIES IN MOLECULAR BEAM-GROWN ZNSE EPILAYERS

被引：12
|
作者：
BOLGER, JA
GALBRAITH, I
KAR, AK
SIMPSON, J
WANG, SY
PRIOR, KA
CAVENETT, BC
WHERRETT, BS
机构：
[1] UNIV SYDNEY,CTR OPT FIBRE TECHNOL,SYDNEY,NSW 2006,AUSTRALIA
[2] DEF RES AGCY,WORCESTER WR14 3PS,ENGLAND
来源：
APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 06期
关键词：
D O I：
10.1063/1.109935
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report novel measurements of the room temperature refractive optical nonlinearities in a molecular beam epitaxy-grown ZnSe epilayer at frequencies near to the band edge. Time-resolved changes in the transmission spectrum due to a two-photon generated plasma of free carriers are monitored with a broad-band white-light continuum probe. The refractive index changes, measured for photon energies between 0.8 and 0.05 eV below the free-exciton line at 2.68 eV, with photoexcited carrier densities of (2-5) X 10(18) cm-3, are found to be in good agreement with a many-body plasma calculation.
引用
收藏
页码：709 / 711
页数：3
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