> http://www.hajim.rochester.edu/optics/sites/boyd/assets/pdf/publications/Boyd_PIO_02.pdf http://www.hajim.rochester.edu/optics/sites/boyd/assets/pdf/... Fast

> http://www.hajim.rochester.edu/optics/sites/boyd/assets/pdf/publications/Boyd_PIO_02.pdf http://www.hajim.rochester.edu/optics/sites/boyd/assets/pdf/... Fast and slow light. Read and be edified.