This paper describes the design and implementation of a single-chip digitally synthesized 0-35 MHz agile function generator. The chip comprises an integrated direct digital synthesizer (DDS) with a 10-bit onchip digital-to-analog converter (DAC) using an n-well single-poly triple-metal 0.5-μm CMOS technology. The main features of the chip include maximum clock frequency of 100 MHz at 3.3-V supp...

We report the fluorescence emission which is driven by femtosecond laser pulses with a repetition rate of 100 MHz and center wavelength 1040 nm in nitrogen gas jet. The experiment performed enhancement cavity coupled high laser. In contrast to previous observation at low jet, where 391-nm radiation was observed but 337-nm missing, three times stronger than our experiment. By examining dependenc...