Color-center waveguides in low-energy electron-bombarded lithium fluoride
A. Rocchetti, G. Assanto, R.M. Montereali, E. Nichelatti, and F. Somma
Appl. Phys. Lett. 88, 261111 (2006)
Abstract:We employ a differential version of m-line spectroscopy through grating coupling in order to measure the refractive index of low-energy electron irradiated lithium fluoride crystal channel waveguides for broadband emission. Using photoresist films and a holographic setup for grating fabrication, we perform an accurate characterization of bidimensional structures and a direct quantitative comparison between treated and blank materials.