TY - GEN
T1 - Flat transformation optics graded-index (TO-GRIN) lenses
AU - Wu, Qi
AU - Turpin, Jeremiah P.
AU - Wang, Xiande
AU - Werner, Douglas Henry
AU - Pogrebnyakov, Alexej
AU - Swisher, Andrew
AU - Mayer, Theresa S.
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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U2 - 10.1109/EuCAP.2012.6206597
DO - 10.1109/EuCAP.2012.6206597
M3 - Conference contribution
AN - SCOPUS:84862869470
SN - 9781457709180
T3 - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
SP - 1701
EP - 1705
BT - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
T2 - 6th European Conference on Antennas and Propagation, EuCAP 2012
Y2 - 26 March 2012 through 30 March 2012
ER -