This work explores the development of highly sensitive salinity sensors. The demonstrated sensors are based on optical fibres and consist on Fabry-Pérot optical cavities formed by optimized processes that include chemical etching and fusion splicing, on which microfluidic channels are milled by focused ...
Several optical interrogation points are located along the channel which allows to evaluate different device variations within a single fluidic channel. Finally, the sample exits the chip through the waste outlet. We define the coordinate axes as shown in Fig. 1a: in flow direction (X), in-...
In principle, the Sezawa mode is a guided wave, in which the acoustic velocity of the top piezoelectric layer is lower than that of the substrate or sub-layer beneath. Thus, the wave can propagate through the interface or interlayers with a higher velocity than that of the top layer [45...
p. 100) rightly points out, ‘linings can sometimes be extremely damaging’. With that in mind, the starting point for my research was the well-known article by Conroy, ‘The Movement of the Book Spine’ (1987), in which he describes a fundamental engineering principle important for bindings...
But why do we use them and what is the science behind how they work? 18 Recycling Technology Types of Plastics Used in the Home: How to Identify PVC, PET, Polythene and Others. 22 months ago Plastics are ubiquitous, and there are three types which are normally recyclable and identifiable ...
Optical coherence tomography (OCT) is a well-established, non-invasive optical imaging technology that can image biological samples with high speed and high resolution. It has been applied in the clinical examination of ophthalmology-related conditions [21,22,23]. OCT’s imaging principle mainly dep...
In a method for spinning of opened fibres of linear textile structure, the fibres are conveyed by suction in an air stream into a spinning chamber which is formed between a conical rotor rotating at high speed and a stationary hollow cone. The air stream passes through the rotating cone in ...
Bohr's principle of complementarity asserts that there exist complementary properties of the same object of knowledge, one of which if known will exclude knowledge of the other. We may therefore describe an object like an electron in ways which are mutually exclusive—e.g., as wave or particle...
The principle was validated on an etched diffraction grating, which successfully split the arbitrarily polarized light containing four wavelengths into eight channels with single-polarization and single-wavelength signals. Polarization-dependent losses of 0.5–1.8 dB, minimum insertion loss of 0.5 ...
Principle of the self-measurement based on optical fibres; (a) optical camera, where the reflective prism is installed on the truss of the second mirror and the CMOS sensor and optical fibre are installed on the focal plane; (b) optical fibre source, which is a two-lead p-n junction dio...