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Sensitive detection of infrared photons using a high-Q microcantilever |
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| Authors: | Zhang Fengxin Zhu Yinfang Yang Jinling Cao Lixin |
| Institution: | 1. Research Center of Engineering for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;State Key Laboratory of Transducer Technology, Beijing 100080, China 2. National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics,Chinese Academy of Sciences, Beijing 100190, China |
| Abstract: | A new approach based on microcantilevers is presented to detect infrared photons with high sensitivity. Infrared photons are measured by monitoring the amplitude change of a vibrating microcantilever under light pressure force.The irradiating light is modulated into sinusoidal and pulsed waves,and to be in-phase and anti-phase with the cantilever driving signal.A linear relationship between the amplitude change of the cantilever and the light power distributing on the cantilever was observed.Under a vacuum ... |
| Keywords: | infrared photon detection light pressure force cantilever |
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