A two-port ring-resonator circuit is studied theoretically. It is shown that superluminal and negative group velocity (vg) phenomena can occur in both a passive two-port ring-resonator circuit with loss and an active one with gain. We present numerical observations of temporal behavior of a Gaussian pulse passing through circuits having such properties. We also show that when the negative vg is ‘slow’ (|vg|<<c), there is enhanced sensitivity of the phase shift to the ring effective index changes, which suggests its potential for highly sensitive optical sensing applications.
|Title of host publication||11th Annual Symposium IEEE/LEOS Benelux|
|Editors||A.M.J. Koonen, X.J.M. Leijtens, H.P.A. van den Boom|
|Place of Publication||Eindhoven|
|Publisher||IEEE LEOS Society|
|Number of pages||4|
|Publication status||Published - Dec 2006|
|Event||11th Annual Symposium IEEE/LEOS Benelux Chapter 2006 - Eindhoven, The Netherlands, Eindhoven, Netherlands|
Duration: 30 Nov 2006 → 1 Dec 2006
Conference number: 11
|Conference||11th Annual Symposium IEEE/LEOS Benelux Chapter 2006|
|Period||30/11/06 → 1/12/06|
- IOMS-SNS: SENSORS
Uranus, H. P., & Hoekstra, H. (2006). Numerical observations of negative group velocity in a two-port ring-resonator circuit and its potential for sensing applications. In A. M. J. Koonen, X. J. M. Leijtens, & H. P. A. van den Boom (Eds.), 11th Annual Symposium IEEE/LEOS Benelux (pp. 93-96). Eindhoven: IEEE LEOS Society.