Abstract

In order to study the phototropism exhibited by certain monoazo dyes more completely, a shutter and a sample illuminator were constructed for use with a Cary Recording Quartz Spectrophotometer. By use of this device the dye solutions can be exposed to a strong light source during the dark periods of the chopping shutter of the instrument. In this way solutions which show a very rapid phototropic change can be studied.

© 1952 Optical Society of America

Phototropic Dyes

E. I. Stearns
J. Opt. Soc. Am. 32(5) 282-284 (1942)

An Automatic Relative-Transmission Attachment for the Beckman Model DU Spectrophotometer

Wilbur Kaye and R. G. Devaney
J. Opt. Soc. Am. 42(8) 567-571 (1952)

The Optical Properties of a Compound Liquid Prism Suitable for Studies of the Raman Effect

H. J. V. Tyrrell and G. K. T. Conn
J. Opt. Soc. Am. 42(2) 106-113 (1952)

Photometric Papers Sensitive Only to Short Wave Ultraviolet

Lyman Chalkley
J. Opt. Soc. Am. 42(6) 387-392 (1952)

The Electro-Optic Effect in Uniaxial Crystals of the Dihydrogen Phosphate (XH₂PO₄) Type. IV. Angular Field of the Electro-Optic Shutter*

Bruce H. Billings
J. Opt. Soc. Am. 42(1) 12-20 (1952)