Abstract
The present disclosure relates to a steady-state microwave conductivity method that includes modulating a light beam to form an amplitude modulated light having a modulation frequency 1.sub.1, producing a microwave waveform, exposing a sample to the amplitude modulated light and a first portion of the microwave waveform to produce an amplitude modulation signal on the first portion of the microwave waveform, and mixing a second portion of the microwave waveform and the amplitude modulation signal to produce a first signal and a second signal.
| Original language | American English |
|---|---|
| Patent number | 11,563,405 B2 |
| Filing date | 24/01/23 |
| State | Published - 2023 |
NREL Publication Number
- NREL/PT-5900-85190
Keywords
- amplitude modulated light
- amplitude modulation signal
- frequency-filtered amplified difference signal
- photoconductivity parameter