Crystal oscillators are loosely divided via the frequency they function at and whether or not they are basic oscillators—do the job with the frequency marked on the can or at even multiples of that (overtone oscillators). Substantial-repetition-level and large-energy picosecond regenerative amplifier based upon a single bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期性，隔... https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html