Diffraction grating sensor

Scheme 10.5 Principles of various sensing methods based on light interference or diffraction (a and b) PCCA sensors (c and d) Fabry-Perot sensors (e) holographic sensor (f) inverse opal sensor (g) diffraction grating sensor.

As for miniaturisation, examples are UV/VIS spectrometers using a linearly variable filter rather than a diffraction grating as the wavelength separation device (matchbox size), and double-focusing mass sensors (postage stamp size). 

In grating coupler sensors, a diffraction grating is used to couple light in (Figure 12) or out of (Figure 13) a waveguide18. In the input grating coupler... 

Homola, J., Koudela, I., and Yee, S. S. (1999). Surface Plasmon resonance sensor based on diffraction gratings and prism couplers sensitivity comparison. Sens. Actuators B 54 16-24. 

Fig. 5.14. Schematic illustration of a grating coupler device (the outcoupler one is shown, see text for details). The light is incoupling by end-fire. A diffraction grating outcoupled the light onto a photodiode array (detector). The displacement in the position of the outcoupled beam is a quantitative measurement of the interaction that takes place on the grating sensor region.

Sensors Based on Resonances in Diffraction Grating Structures. 81... 

Changes of the holographic diffraction wavelength in optical Bragg-grating sensors (Liu et al. 2003 Cong et al. 2002)... 

Adam P (2005) Siuface plasmons on diffraction gratings and their sensor applications. Charles University, Prague... 

The method of manipulating these ultrathin trilayer solid-fluid-solid films is likely to depend on the final application of the film. These films could find application as a method of testing the mechanical properties of the thin solid layers [12, 38]. Furthermore, the creation of regular corrugated structures could lead to optical applications, such as diffraction grating or optical sensors [12]. However, the unique feature of these ultrathin solid-fluid-solid films (over other thin-film systems) is the final structures that consist of isolated pockets of fluid. It would, therefore, be highly desirable to exhibit some control over these pockets and guide the structures to form ordered channels of fluid. 

Homola J, Koudela I, Yee SS, Surface plasmon resonance sensors based on diffraction gratings and prism couplers Sensitivity comparison, Sensor Actual. B Chem. 1999 54 16-24. 

Ruminski AM, Secret E, Sailor MJ (2008) Chemical sensors based on resonant diffraction gratings made of porous silicon imprinted with a silicone polymer. In Canham LT et al (eds) Porous semiconductor science and technology, Mallorca pp 113-114 Ryckman JD, Liscidini M, Sipe JE, Weiss SM (2010a) Porous sihcon structures for low-cost diffraction-based biosensing. Appl Phys Lett 96(17) 171103 Ryckman JD, Liscidini M, Sipe JE, Weiss SM (2010b) Diffraction based biosensing with porous silicon. In Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science conference (QELS), 2010 conference on Lasers and Electro-Optics, San Jose, Cabfomia United States, pp 1-2... 

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