Photo of the First Fiber-Coupled Vapor-Cell for Electrical Field Measurements (image) American Institute of Physics Share Print E-Mail Caption Photo of the first fiber-coupled vapor-cell for electrical field measurements. The fiber-coupled sensor head (i.e., the vapor cell) can be moved off the optical table for ease of operation, which is useful in field-strength measurements, and for near-field and sub-wavelength imaging applications. Credit NIST Usage Restrictions This image may be used with appropriate credit. 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.