Patent ID: 11862265
Assignee: UNIVERSITY OF OREGON
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 6:
7. A method for photodetection of light with a nanoelectromechanical (NEMS) resonator, the method comprising:
applying a gate voltage between the drum membrane and a back gate,
exposing the membrane to laser light to produce photoionization of the drum membrane such that a resulting charge alters the membrane resonant frequency,
turning off the laser light and releasing the gate voltage to set the resonant frequency of the membrane to a predetermined frequency;
exposing the drum membrane to the light to produce photoionization of the drum membrane such that a resulting charge alters the membrane resonant frequency;
measuring the drumhead resonance frequency and comparing it to the predetermined frequency to determine total accumulated exposure of the drumhead to the light.