Authors: Gao Peng
This work studies detection of torsion field by way of measuring the dark current of silicon photodiode. For this purpose, a photodiode which works in reverse bias state and a ultra-weak current detector should be used in all the related experiments, because the dark current of selected photodiode is in pA(10-12A) level. According to the results,the right-handed torsion field can make the dark current decrease and the left-handed torsion field can make the dark current increase.
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