Transverse Momentum and Spin in the Evanescent Wave above a Prism (image) RIKEN Share Print E-Mail Caption Transverse force and torque on a particle in evanescent field generated from a total internal reflection in a glass prism. These reveal the presence of the transverse momentum and spin in the evanescent wave above the prism. Credit RIKEN Usage Restrictions UNDER EMBARGO UNTIL: 10:00 GMT / 05:00 EST/ 19:00 JST on March 6, 2014 Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.