High-voltage light-emitting diodes(HV-LED) with backside reflector, including Ti3O5/SiO2 distributed Bragg reflector(DBR) or hybrid reflector combining DBR and
An acoustic–optic Q-switched all-fiber laser with a high-repetition-rate, a short pulse width, a wide spectrum, and a high conversion efficiency is experimenta
Laser-induced breakdown spectroscopy(LIBS)has been applied to the analysis of heavy metals in liquid samples.A new approach was presented to lower the limit of