The primary current thrust of Dr. Rosenberger's research is an

experimental and theoretical investigation into the fundamental properties and technical applications of optical whispering-gallery modes (WGMs).  A fused-silica microsphere, less than one millimeter in diameter, has many WGMs, each with a very high Q and an evanescent part extending

 outside the sphere.  Laser light is coupled into a WGM by optical tunneling, using a tapered fiber or a prism.  The WGM frequency can be tuned and locked to the laser by compressing the sphere.  The interaction of the WGM with the ambient or with a nanocomposite thin-film coating on the microsphere has enabled Dr. Rosenberger's group to investigate applications such as the following:

Contact Information

Telephone

405-744-6742

FAX

405-744-6811

Postal address

145 Physical Sciences
Oklahoma State University
Stillwater, OK 74078-3072

E-mail

General Information: Dr. Albert Rosenberger