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Schematic diagram of the solar-blind UV detectors in the background of solar spectral irradiance.
Performance of the BLUP and the ultimate SFL presented by various cutoff wavelengths. The LBL performance with lowpass sawtooth-like response curve and maximum QE = 1 is also illustrated. Some of the cutoff wavelengths are corresponding to the commercial laser as indicated in brackets.
Solar-irradiance-limited detectivity of representative solar-blind UV detectors. The inset shows the QE versus wavelength of samples.
(a) QE of photodetectors and characteristics of filters. Dashed lines present the transmissivity of the supposed lowpass Filter (1) and Filter (2), and the solid line is for practical Filter (3). (b) The performance of the detectors with the filters.
Comparison of noise from dark current ( ) and solar-irradiance background ( ).
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