Flat transformation optics graded-index (TO-GRIN) lenses

Qi Wu, Jeremiah P. Turpin, Xiande Wang, Douglas Henry Werner, Alexej Pogrebnyakov, Andrew Swisher, Theresa S. Mayer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


This paper illustrates the use of quasi-conformal (QC) transformation optics (TO) techniques to design flat gradient-index (GRIN) lenses as replacements for conventional optical lenses. Three flat TO lenses are considered to demonstrate the flexibility of the new design approach. Two dimensional (2D) Finite-Difference Time Domain (FDTD) simulations show equivalent performance between the original lenses and the flat TO lenses. Furthermore, a body of revolution (BOR) FDTD method was developed and employed to characterize the imaging properties of the three dimensional (3D) cylindrical lenses, validating the predictions of 2D simulations. These designs only require spatially-varying dielectric materials with no magnetic properties, facilitating low-loss, broadband operation in both the microwave and optical regimes.

Original languageEnglish (US)
Title of host publicationProceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
Number of pages5
StatePublished - Jul 2 2012
Event6th European Conference on Antennas and Propagation, EuCAP 2012 - Prague, Czech Republic
Duration: Mar 26 2012Mar 30 2012


Other6th European Conference on Antennas and Propagation, EuCAP 2012
Country/TerritoryCzech Republic

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications


Dive into the research topics of 'Flat transformation optics graded-index (TO-GRIN) lenses'. Together they form a unique fingerprint.

Cite this