| 2. | There are many optical depletion mechanisms , such as diffraction depletion , the transimission of a reflector , scattering of the medium in the cavity , non - life absorption and so on , so the quality factor ( q factor ) is low . in
利用这种微谐振腔制作的激光器,其自发辐射频率落在光子晶体的禁带范围内,有效降低了激光振荡的阈值,从而使激光器具有低阈值高效的特点。 |
