Negative group velocity and group delay in left-handed media
- 6 October 2004
- journal article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 70 (4) , 046603
- https://doi.org/10.1103/physreve.70.046603
Abstract
The dynamics of wave propagation in media with negative index of refraction is analyzed through analytical calculations, simulations, and experiments. Using a free space setup, the transmission characteristics of two split ring resonator and strip wire left-handed media (LHM), designed for operation at K -band frequencies (18-26 GHz), are measured. The first LHM, which is 3 unit cells long in the propagation direction, exhibits a maximum negative group delay of -0.9 ns . The second LHM (4 unit cells long) exhibits a maximum negative group delay of -1.2 ns . For both LHM the bandwidth of the negative group delay (and hence the negative group velocity) region was approximately 250 MHz.Keywords
This publication has 18 references indexed in Scilit:
- Time-domain detection of superluminal group velocity for single microwave pulsesPhysical Review E, 2000
- Frequency-domain detection of superluminal group velocity in a distributed Bragg reflectorIEEE Journal of Quantum Electronics, 2000
- The question of tunneling time duration: A new experimental test at microwave scalePhysics Letters A, 1998
- Measurement of the single-photon tunneling timePhysical Review Letters, 1993
- Anomalous pulse delay in microwave propagation: A plausible connection to the tunneling timePhysical Review E, 1993
- Time delay of evanescent electromagnetic waves and the analogy to particle tunnelingPhysical Review A, 1992
- Delay-time measurements in narrowed waveguides as a test of tunnelingApplied Physics Letters, 1991
- Linear Pulse Propagation in an Absorbing MediumPhysical Review Letters, 1982
- Propagation of a Gaussian Light Pulse through an Anomalous Dispersion MediumPhysical Review A, 1970
- Wave Propagation and Group VelocityPhysics Today, 1961