Electric-Field Dependence of Photocarrier Properties in the Steady-State Photocarrier Grating Experiment

  • PDF / 244,349 Bytes
  • 6 Pages / 612 x 792 pts (letter) Page_size
  • 27 Downloads / 229 Views

DOWNLOAD

REPORT


A9.7.1

                 5 %UJJHPDQQ DQG 5, %DGUDQ ,QVWLWXW IU 3K\VLN &DUO YRQ 2VVLHW]N\ 8QLYHUVLWlW 2OGHQEXUJ  2OGHQEXUJ *HUPDQ\ (PDLO UXGLEUXHJJHPDQQ#XQLROGHQEXUJGH  3K\VLFV 'HSDUWPHQW 7KH +DVKHPLWH 8QLYHUVLW\ 32 %R[  =DUTD -RUGDQ (PDLOUEDGUDQ#KXHGXMR 

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

A9.7.2

GLIIHUHQW UHJLPHV E\ YDULDWLRQ RI WKH HOHFWULF ILHOG RU JUDWLQJ SHULRG HLWKHU GULIW RU GLIIXVLRQ GRPLQDWHG WUDQVSRUW OHQJWKV GHWHUPLQH WKH YDOXH RI E ,Q WKH FDVH RI WKH GRPLQDQFH RI RQH FKDUJH FDUULHU W\SH OLNH HOHFWURQV IRU H[DPSOH E KDV WKH H[SUHVV