110 citations · 216 across the 5 of their papers we have counts for
5 papers
Subwavelength imaging by a left-handed material superlens
X. S. Rao, C. K. Ong
In this work, finite-difference time-domain (FDTD) method is employed to justify the superlensing effect of left-handed material (LHM) slabs. Our results demonstrate that subwavele…
Amplification of evanescent waves in a lossy left-handed material slab
X. S. Rao, C. K. Ong
We carry out finite-difference time-domain (FDTD) simulations, with a specially-designed boundary condition, on pure evanescent waves interacting with a lossy left-handed material…
Q-Factor Measurement of Nonlinear Superconducting Resonators
X. S. Rao, C. K. Ong, Y. P. Feng
A novel method, which combined a multi-bandwidth measurement and an extrapolation procedure, is proposed for extracting the loaded Q-factor (Q_{L}) with improved accuracy from non-…
Hysteresis measurement of anomalous microwave surface resistance in superconducting thin films
X. S. Rao, C. K. Ong, B. B. Jin +1
The anomalous decrease in microwave surface resistance, R_{s}, of superconducting YBa_{2}Cu_{3}O_{7-d} (YBCO) thin films in the presence of a low dc magnetic field is studied using…
Anomalous microwave response of high-temperature superconducting thin-film microstrip resonator in weak dc magnetic fields
X. S. Rao, C. K. Ong, B. B. Jin +5
We have studied an anomalous microwave (mw) response of superconducting YBa_{2}Cu_{3}O_{7-delta} (YBCO) microstrip resonators in the presence of a weak dc magnetic field, H_{dc}. T…