spare parts (=kept for when a part breaks, needs replacing etc)备用零件 Do away with: To do away with something means to remove it completely or put an end to it. 消除; 终结 The long-range goal must be to do a...
Menlo Systems, the first commercial supplier of optical frequency combs, employed fiber-based SCG to generate its frequency combs across an ever increasing wavelength range. The company combines its femtosecond fiber laser technology with SCG to preserve the comb structure of the fiber laser output wh...
The radiators are designed such that phase centers of the beam elements lie at a distance smaller than wavelength (lambdac) of maximum transmission frequency. The radiators are designed as dielectric filled horn radiators or quad-ridged horn radiators. 展开 ...
A wavelength of 960 nm was used for excitation. Images were acquired using the Olympus software. Functional images (256 × 256 pixels, 0.429 s per frame) of V1 neurons (460 μm under the pia) were recorded. As visual stimuli, we used moving gratings generated using ...
Such sources include, but are not limited to, solid state lasers and other devices which can generate energy in the ultraviolet wavelength between about 185 and 205 nm and/or those which utilize frequency-multiplying techniques. Hence, although an excimer laser is the illustrative source of an ...