The optical analog of negative temperature coefficient resistance

Author

Wiersma, Diederik S. ; Righini, Roberto ; Colocci, Marcello ; Aliev, Fouad M.

Author_Institution

Eur. Lab. for Non-Linear Spectrosc., Florence Univ., Italy

Volume

38

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

934

Lastpage

937

Abstract

Light propagation in disordered dielectric materials shows many similarities with electron transport. The most simple example of this is Ohm\´s law which has a counterpart in optics as well. We have performed optical measurements on the transmission through opaque liquid crystals and infiltrated porous glasses to illustrate this effect. In particular, we have studied a system where the "optical resistivity" can be made temperature dependent

Keywords

light propagation; light scattering; light transmission; nematic liquid crystals; opacity; optical conductivity; optical glass; Ohm´s law; disordered dielectric materials; light diffusion; light propagation; light transmission; liquid crystal infiltrated porous glasses; opaque nematic liquid crystals; optical NTC resistance; optical measurements; optical negative temperature coefficient resistance; optical resistivity; Conductivity; Dielectric materials; Dielectric measurements; Electrical resistance measurement; Electron optics; Glass; Liquid crystals; Optical propagation; Performance evaluation; Temperature;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2002.1017610

Filename

1017610