Search

Your search keyword '"Richard, Alex"' showing total 2 results
Start Over Author "Richard, Alex" Journal journal of applied physics
2 results on '"Richard, Alex"'

1. Anisotropic complex permittivity measurements of mono-crystalline rutile between 10 and 300 K

Author

Tobar, Michael Edmund, Krupka, Jerzy, Ivanov, Eugene Nicolay, and Woode, Richard Alex

Subjects
Rutile -- Analysis, Resonators -- Analysis, Anisotropy -- Analysis, Physics
Abstract

An analysis on the mono-crystalline rutile resonator was conducted to measure its dielectric properties through the use of whispering gallery mode method. The resonant frequencies were subjected to 300 to 10 K measurements. Results revealed that the loss tangent and dielectric constant of a single crystal rutile which exhibited anisotropy were obtained through the whispering gallery mode technique.

Published
1998

2. Anisotropic complex permittivity measurements of mono-crystalline rutile between 10 and 300 K

Author

Eugene Ivanov, Jerzy Krupka, Michael E. Tobar, and Richard Alex Woode

Subjects
Permittivity, Materials science, Condensed matter physics, business.industry, General Physics and Astronomy, Relative permittivity, Dielectric, Optics, Rutile, Dissipation factor, Dielectric loss, Whispering-gallery wave, business, Single crystal
Abstract

The dielectric properties of a single crystal rutile (TiO2) resonator have been measured using whispering gallery modes. Q factors and resonant frequencies were measured from 300 to 10 K. Q factors as high as 104, 105, and 107 were obtained at 300, 80, and 10 K, respectively. Using the whispering gallery mode technique we have determined accurately the loss tangent and dielectric constant of monocrystalline rutile and obtained much more sensitive measurements than previously reported. We show that rutile exhibits anisotropy in both the loss tangent and permittivity over the range from 10 to 300 K.

Published
1998

Catalog

Books, media, physical & digital resources
See catalog results