@article{7785, author = {A. K. Kaveev and G. I. Kropotov and E. V. Tsygankova and I. A. Tzibizov and S. D. Ganichev and S. N. Danilov and P. Olbrich and C. Zoth and E. G. Kaveeva and A. I. Zhdanov and A. A. Ivanov and R. Z. Deyanov and B. Redlich}, title = {Terahertz polarization conversion with quartz waveplate sets}, abstract = {We present the results of calculation and experimental testing of an achromatic polarization converter and a composite terahertz waveplate (WP), which are represented by sets of plane-parallel birefringent plates with in-plane birefringence axis. The calculations took into account the effect of interference, which was especially prominent when plates were separated by an air gap. The possibility of development of a spectrum analyzer design based on a set of WPs is also discussed. (C) 2013 Optical Society of America}, year = {2013}, journal = {Applied Optics}, volume = {52}, pages = {B60-B69}, month = {Feb}, isbn = {1559-128X}, doi = {10.1364/AO.52.000B60}, language = {English}, }