WAVE-GUIDE CAPILLARY CELL FOR LOW-REFRACTIVE-INDEX LIQUIDS

Authors
ALTKORN R KOEV I GOTTLIEB A
Citation
R. Altkorn et al., WAVE-GUIDE CAPILLARY CELL FOR LOW-REFRACTIVE-INDEX LIQUIDS, Applied spectroscopy, 51(10), 1997, pp. 1554-1558
Citations number
31
Categorie Soggetti
Instument & Instrumentation",Spectroscopy
Journal title
Applied spectroscopy → ACNP
ISSN journal
00037028
Volume
51
Issue
10
Year of publication
1997
Pages
1554 - 1558
Database
ISI
SICI code
0003-7028(1997)51:10<1554:WCCFLL>2.0.ZU;2-4
Abstract
We describe a waveguide capillary cell based on a fused-silica tube co ated externally with a thin layer of a low-refractive-index (n = 1.31) fluoropolymer. When filled with a transparent liquid of refractive in dex greater than that of the fluoropolymer, the cell is capable of tra nsmitting light through total internal reflection. Loss below 1 dB/m i s demonstrated throughout much of the visible region for a 530-mu m-i. d., 660-mu m-o.d. cell filled with water.