A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.

A laser remote control switching system comprises a laser source and a control circuit. The control circuit comprises a power, an electronic device, a first electrode, a second electrode, and a photosensitive element electrically connected in sequence to form a loop. Each of the two nanofiber actuators comprises a composite structure and a vanadium dioxide layer. The composite structure comprises a carbon nanotube wire and an aluminum oxide layer. The aluminum oxide layer is coated on a surface of the carbon nanotube wire, and the aluminum oxide layer and the carbon nanotube wire are located coaxially with each other. The vanadium dioxide layer is coated on a surface of the composite structure, and the vanadium dioxide layer and the composite structure are located non-coaxially with each other.

A laser remote control switching system comprises a laser source and a control circuit. The control circuit comprises a power, an electronic device, a first electrode, a second electrode, and a photosensitive element electrically connected in sequence to form a loop. Each of the two nanofiber actuators comprises a composite structure and a vanadium dioxide layer. The composite structure comprises a carbon nanotube wire and an aluminum oxide layer. The aluminum oxide layer is coated on a surface of the carbon nanotube wire, and the aluminum oxide layer and the carbon nanotube wire are located coaxially with each other. The vanadium dioxide layer is coated on a surface of the composite structure, and the vanadium dioxide layer and the composite structure are located non-coaxially with each other.

An overheating destructive disconnecting method for switch, whereby an operating member applies a first elastic force under normal conditions to enable the movable conductive member contacts a first conductive member and a second conductive member to form a conductive circuit; and a second elastic force to enable the movable conductive member to separate from the first conductive member or the second conductive member. The installation position of the overheating destructive member is used to receive heat energy instead of allowing current to flow thereto. When the overheating destructive member is destructed or deformed under a fail temperature condition, lessening or loss of the force applied by the first elastic force towards the movable conductive member causes the movable conductive member to no longer allow electrical conduction to the first conductive member and the second conductive member, thereby breaking the current-carrying circuit.

The present application relates to compositions and methods of making flexible composite materials that are capable of moving, on a micro- or macro-scale, in response to an applied magnetic field and localized heat from a heat source. The present disclosure further provides systems and methods of using the flexible composite material as an actuator for performing a mode of actuation. In one embodiment, the flexible composite material forms a wireless actuator that, when irradiated with light, is capable of micro- and macro-scale motion acting through the interplay of optically absorptive elements and low-Curie temperature magnetic particles.

A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.

A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.

An overheating destructive disconnecting method for switch, whereby an operating member applies a first elastic force under normal conditions to enable the movable conductive member contacts a first conductive member and a second conductive member to form a conductive circuit; and a second elastic force to enable the movable conductive member to separate from the first conductive member or the second conductive member. The installation position of the overheating destructive member is used to receive heat energy instead of allowing current to flow thereto. When the overheating destructive member is destructed or deformed under a fail temperature condition, lessening or loss of the force applied by the first elastic force towards the movable conductive member causes the movable conductive member to no longer allow electrical conduction to the first conductive member and the second conductive member, thereby breaking the current-carrying circuit.

A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.