Abstract

Terahertz (THz) radiation has attracted extensive attentions in the past decades due to its potential applications. Many developments have been made in the fields of sources, detector, and applications. However, due to the long wavelength property of the THz radiation, the size of the optical elements for dominating THz beam is quite large. They are not suitable for THz system integration. Based on the diffractive optics theory, the thickness of an element, for example, a lens can be reduced from several millimeters for bulk elements to several hundred micrometers for diffractive optical elements. However, this size is still too large for some applications. Is it possible to reduce the thickness of the THz lens?

© 2013 IEEE