Abstract: A modular post comprising a plurality of pole modules arranged one above the other along a central axis, said pole modules comprising a functional pole module for receiving and/or transmitting signals; said functional pole module comprising: a housing comprising a lower, middle, and upper sections; a functional unit comprising a wireless communication means, and a power and data interface configured for being connected to a power source and to the wireless communication means, for powering the wireless communication means, for powering another functional unit of another functional pole module, and for transmitting and/or receiving data to/from the another functional unit; wherein the lower section comprises a coupling interface for coupling the functional pole module to another pole module located below along the central axis, and/or wherein the upper section comprises a coupling interface for coupling the functional pole module to another pole module located above along the central axis.

Abstract: In this work is presented a method for fabrication of high-aspect ratio structures through spalling effect. The spalling is achieved through lithography, etching and sputtering processes, thus providing the flexibility to position the spalled structures according to the application requirements. This method has been successfully demonstrated for metal-oxides and metals. The width of the fabricated structures is dependent on the thickness of the film deposited by sputtering, where structures as small as 20 nm in width have been obtained.

Abstract: The invention relates to a lamp post comprising a support pole, and a plurality of pole modules arranged one above the other along a vertical axis of the support pole, and supported by the support pole; said plurality of pole modules comprising: a light pole module and a functional pole module; said light pole module comprising a light source; said functional pole module comprising a tubular portion configured for being aligned with the vertical axis of the support pole, a bracket protruding outwardly of said tubular portion, and a functional unit fixed to said bracket; wherein preferably the functional unit is a camera unit.

Abstract: A fiber-optic salinity and temperature measurement includes a first Fabry-Perot interferometer and a second Fabry-Perot interferometer. Each of the Fabry-Perot interferometers includes a first optical fiber fusion spliced to a second optical fiber such that a relatively large cavity is formed between the fibers. The relatively large cavity forms the measurement chamber for each Fabry-Perot interferometer. The input port on each of the Fabry-Perot interferometers is coupled to an optical splitter such that a single optical signal input is provided to each Fabry-Perot interferometer. The output port on each of the Fabry-Perot interferometers is coupled to an optical combiner that combines the interference signal received from each of the Fabry-Perot interferometers. An optical signal analyzer coupled to an output port of the optical combiner determines the salinity and temperature of a sample material in the large cavity of the second Fabry-Perot interferometer.

Abstract: In this work is presented a method for fabrication of high-aspect ratio structures through spalling effect. The spalling is achieved through lithography, etching and sputtering processes, thus providing the flexibility to position the spalled structures according to the application requirements. This method has been successfully demonstrated for metal-oxides and metals. The width of the fabricated structures is dependent on the thickness of the film deposited by sputtering, where structures as small as 20 nm in width have been obtained.

Abstract: A fiber-optic salinity and temperature measurement includes a first Fabry-Perot interferometer and a second Fabry-Perot interferometer. Each of the Fabry-Perot interferometers includes a first optical fiber fusion spliced to a second optical fiber such that a relatively large cavity is formed between the fibers. The relatively large cavity forms the measurement chamber for each Fabry-Perot interferometer. The input port on each of the Fabry-Perot interferometers is coupled to an optical splitter such that a single optical signal input is provided to each Fabry-Perot interferometer. The output port on each of the Fabry-Perot interferometers is coupled to an optical combiner that combines the interference signal received from each of the Fabry-Perot interferometers. An optical signal analyzer coupled to an output port of the optical combiner determines the salinity and temperature of a sample material in the large cavity of the second Fabry-Perot interferometer.

Abstract: The invention relates to a lamp post comprising a support pole, and a plurality of pole modules arranged one above the other along a vertical axis of the support pole, and supported by the support pole; said plurality of pole modules comprising: a light pole module and a functional pole module; said light pole module comprising a light source; said functional pole module comprising a tubular portion configured for being aligned with the vertical axis of the support pole, a bracket protruding outwardly of said tubular portion, and a functional unit fixed to said bracket; wherein preferably the functional unit is a camera unit.