TY - GEN
T1 - Two prisms transmission enhanced by whispering gallery modes
T2 - 22nd Congress of the International Commission for Optics: Light for the Development of the World
AU - Nápoles-Duarte, J. M.
AU - Gaspar-Armenta, J. A.
AU - García-Llamas, R.
PY - 2011
Y1 - 2011
N2 - Resonant cavities based on whispering gallery modes (WGM) have high quality factor, Q. This property is highly desirable for the design of a variety of devices. The quality factor is larger for larger systems, but, at the same time the density of modes increases, and not as regularly spaced frequencies, because modes of different kind superpose. For a dielectric cylinder, the modes are characterized by their azimuthal and radial behavior. The complex frequencies corresponding to the modes have a strong dependence on the radial order. We use the finite difference time domain method, to study the transmission of light by two prisms with a dielectric cylinder between them. The system acts as a filter with sharp peaks of modes of high Q. The coupling to the modes can be controlled by changing the distance of separation between the prisms. For large coupling, the full width at half maximum of the transmission peaks increases, being more noticeable for the high Q modes.
AB - Resonant cavities based on whispering gallery modes (WGM) have high quality factor, Q. This property is highly desirable for the design of a variety of devices. The quality factor is larger for larger systems, but, at the same time the density of modes increases, and not as regularly spaced frequencies, because modes of different kind superpose. For a dielectric cylinder, the modes are characterized by their azimuthal and radial behavior. The complex frequencies corresponding to the modes have a strong dependence on the radial order. We use the finite difference time domain method, to study the transmission of light by two prisms with a dielectric cylinder between them. The system acts as a filter with sharp peaks of modes of high Q. The coupling to the modes can be controlled by changing the distance of separation between the prisms. For large coupling, the full width at half maximum of the transmission peaks increases, being more noticeable for the high Q modes.
KW - Optical resonators
KW - attenuated total reflection
KW - whispering gallery modes
UR - http://www.scopus.com/inward/record.url?scp=84858385856&partnerID=8YFLogxK
U2 - 10.1117/12.903367
DO - 10.1117/12.903367
M3 - Contribución a la conferencia
AN - SCOPUS:84858385856
SN - 9780819485854
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 22nd Congress of the International Commission for Optics
Y2 - 15 August 2011 through 19 August 2011
ER -