We have fabricated for the first time different optical microcavities made of two Bragg mirrors sandwiching a lithium fluoride film treated by low-energy electrons to create color centers. Among the so-formed defects, we focused our attention on the F2 centers, which can be optically excited around 450 nm and give rise to an efficient broad-band luminescence centered at ∼670 nm in the red spectral range at RT. We have modified the design of the upper reflector of the microcavities in order to shift their resonant wavelength from λres≈665 nm to λres640 nm. We get evidence of the different optical behaviors from measurements of the photoluminescence spectra of the radiation emitted perpendicularly to the multilayer surface.
|Pages (from-to)||151 - 155|
|Number of pages||5|
|Journal||Radiation Effects and Defects in Solids|
|Publication status||Published - 2002|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Materials Science(all)
- Condensed Matter Physics
Somma, F., Belarouci, A., Cathelinaud, M., Jacquier, B., Menchini, F., Montereali, R. M., ... Rigneault, H. (2002). Broad band emitting color centers in lithium fluoride films for optical microcavities. Radiation Effects and Defects in Solids, 156(1), 151 - 155.