We report the results of timing and spectral analysis of the x-ray pulsar EXO2030+375. The observations were made using the Rossi x-ray timing explorer space sa
A cryogenic and room-temperature diode pumped Tm,Ho:YVO4 microchip laser with 0.5 mm crystal length lasing around 2μm is demonstrated for the first time to our
A new evanescently coupled uni-traveling carrier photodiode (EC-UTC-PD) is designed, fabricated and characterized, which incorporates a multimode diluted wavegu
The intensity distribution and phase vortices of the speckle fields generated by multi-aperture random scattering screens are simulated, and it is found that th