Fluorescent patterns with submicron dimensions have been obtained by creating stable F-3(+) and F-2 color centers in LiF films using a focused x-ray beam provided at the ELETTRA synchrotron radiation facility. The patterns were written by scanning the LiF specimen with respect to the x- ray microprobe. In these attempts, using an x-ray microspot with a diameter of 100 nm and a flux density greater than or equal to10(9) photons/s, we generated similar to500-nm-wide lines efficiently emitting in the visible spectral region when excited by blue light at 458 nm. Preliminary results indicate that the spectral distribution of the emitted luminescence can be changed by varying the photon dose delivered to the sample.
Direct writing of fluorescent patterns on lif films by x-ray microprobe
Larciprete R;
2002
Abstract
Fluorescent patterns with submicron dimensions have been obtained by creating stable F-3(+) and F-2 color centers in LiF films using a focused x-ray beam provided at the ELETTRA synchrotron radiation facility. The patterns were written by scanning the LiF specimen with respect to the x- ray microprobe. In these attempts, using an x-ray microspot with a diameter of 100 nm and a flux density greater than or equal to10(9) photons/s, we generated similar to500-nm-wide lines efficiently emitting in the visible spectral region when excited by blue light at 458 nm. Preliminary results indicate that the spectral distribution of the emitted luminescence can be changed by varying the photon dose delivered to the sample.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
