Hexamine electro-optic light modulators
- 1 February 1974
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 7 (2) , 101-104
- https://doi.org/10.1088/0022-3735/7/2/010
Abstract
Although hexamine exhibits a low electro-optic coefficient, large strain-free crystals offer practical devices for both DC and high frequency modulation at reduced operating voltages. A modulator with a light aperture of f/10 has a half-wave voltage of 4.5 kV and shows an extinction ratio of 2000:1. In a multipass mode the voltage can be reduced to less than 100 V but with a consequent loss of angular aperture and light transmission. Precautions taken during modulator construction in order to preserve crystal isotropy included the selection of gold leaf as electrode material and flexible mounts to support the section.Keywords
This publication has 7 references indexed in Scilit:
- Linear Electro-optic Effect in HexamineOptica Acta: International Journal of Optics, 1970
- Linear Electro-Optic (Pockels) Effect in Hexamethylenetetramine: Influence of Crystal StrainJournal of the Optical Society of America, 1969
- The Pockels Effect in HexamineApplied Optics, 1969
- An apparatus for cutting large soluble crystalsJournal of Physics E: Scientific Instruments, 1969
- The Dielectric and Electrooptical Properties of a Molecular Crystal–HexamineApplied Optics, 1964
- Linear Electro-Optic Effects in Class 32, 6, 3 m, and Crystals 4¯3mJournal of the Optical Society of America, 1964
- The Pockels Effect of HexamethylenetetramineApplied Optics, 1963