Antihole position and hole width vary systematically across the 7 F 0 5 D 0 excitation line due to a linear variation in. Transient hole width in sol-gel.
Frequency [GHz]
![Frequency [GHz]](https://static.fdocuments.us/doc/330x215/56815d71550346895dcb7a09/frequency-ghz-56bc57e7b9bfb.jpg)