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Acta Physica Sinica (Overseas Edition), 1994, Vol. 3(11): 828-835    DOI: 10.1088/1004-423X/3/11/005
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

STUDY ON LIGHT LOCALIZATION OF ONE-DIMENSIONAL DISORDERED MULTILAYER

HU WEI (胡炜), ZHANG YOU-LONG (张有珑), ZHANG DAO-ZHONG (张道中), LI ZHAO-LIN (李兆霖), CHENG BING-YING (程丙英), YANG GUO-ZHEN (杨国桢)
Institute of Physics, Academia Sinica, Beijing 100080, China
Abstract  Antimonite and cryolite are used as the high and low refractive index coating materials to be evaporated alternately to the glass substrates. All cryolite layers have the same thickness d/4na, and the thickness of antimonite layers varies randomly around an average value d/4nb, with d=650nm, na and nb their refractive indices. Three kinds of multilayer are prepared, they possess the same degree of thickness disorder, but different total lengths, i.e., 10, 15 and 21 perioda. We measure the transmission and reflection spectrum after the light passing through these multilayers. The exponential intensity variation versus total length is experi-mentally demonstrated, and the light localization length is then obtained. Our experimental results can be fitted very well with the numerical simulation. Based on the measured and calculated localization length, the effects of phase coherent: Bragg reflection and Anderson localization are discussed.
Received:  22 November 1993      Accepted manuscript online: 
PACS:  73.20.Fz (Weak or Anderson localization)  
  78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))  
  73.21.Ac (Multilayers)  

Cite this article: 

HU WEI (胡炜), ZHANG YOU-LONG (张有珑), ZHANG DAO-ZHONG (张道中), LI ZHAO-LIN (李兆霖), CHENG BING-YING (程丙英), YANG GUO-ZHEN (杨国桢) STUDY ON LIGHT LOCALIZATION OF ONE-DIMENSIONAL DISORDERED MULTILAYER 1994 Acta Physica Sinica (Overseas Edition) 3 828

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