Method for detecting electromagnetic wave
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsLin Xiao, Yu-Ying Zhang, Kai-Li Jiang, Liang Liu, Shou-Shan Fan
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Abstract
A method for detecting an electromagnetic wave includes: providing a carbon nanotube structure including a plurality of carbon nanotubes arranged along a same direction. The carbon nanotube structure is irradiated by an electromagnetic wave to be measured. The resistance of the carbon nanotube structure irradiated by the electromagnetic wave is measured.
Claims20
A method for detecting an electromagnetic wave, the method comprising:
- providing an electromagnetic wave sensor comprising a carbon nanotube structure, the carbon nanotube structure comprising a plurality of carbon nanotubes arranged substantially along a same direction;
- irradiating the carbon nanotube structure with an electromagnetic wave to be measured;
- and
- measuring a variation of a resistance of the carbon nanotube structure when the carbon nanotube structure is irradiated by the electromagnetic wave.
A method for detecting an electromagnetic wave comprising:
- providing a carbon nanotube structure comprising a plurality of carbon nanotubes arranged along a same direction;
- irradiating the carbon nanotube structure with an electromagnetic wave to be measured;
- rotating the carbon nanotube structure;
- and
- detecting a polarizing direction of the electromagnetic wave according to a resistance change of the carbon nanotube structure during rotating.
A method for detecting polarization direction of an electromagnetic wave, the method comprising:
- providing an electromagnetic wave sensor comprising a carbon nanotube film, the carbon nanotube film comprising a plurality of carbon nanotubes arranged substantially along a same direction;
- irradiating the carbon nanotube film with an electromagnetic wave;
- rotating the carbon nanotube film to change a length orientation of the carbon nanotubes in the carbon nanotube film, wherein a variation of an electromagnetic wave absorption intensity of the carbon nanotube film induces a variation of a resistance of the carbon nanotube film;
- and
- determining the polarizing direction of the electromagnetic wave by the variation of the resistance of the carbon nanotube film during the rotation.
Dependencies are inferred from the claim text.