Composite resonator

Johannsmann et al. have reported the use of quartz crystal electrical impedance to study the viscoelastic properties of poly(y-methyl-L-glutama-te-co-y-zi-octadecyl-L-glutamate) thin films [65, 66] and Ward studied the viscoelastic characteristics of poly-styrene films with 2-chloro-toluene solvent by measuring the admittance near resonance at 5 MHz of the unloaded quartz resonator and the composite resonator [67]. 

Mechanical engineers have used polarized light to detect stress patterns for many years and more recently a number of workers [3-6] have explored the possibilities of photoelasticity for the fabrication of polarization modulators. The systems have been given several names, photoacoustic modulators, photoelastic modulators and stress modulators, the term photoelastic modulator will be used in this chapter. There are basically two types of photoelastic modulator, composite resonators and matched element resonators. Diagrams of the composite resonator and matched element resonator are shown in figures 6 and 7 respectively. The original piezo-optical devices [7] were composite resonators composed of a central block of optical... 

A. Si02 glass, showing a single broad composite resonance envelope, B. Highly siliceous zeolite ZSM-5, showing resolution of 21 of the tetrahedral Si sites, from Fyfe et al. (1987), by permission of MacMillan Magazines Ltd. Note the difference in the chemical shift scale between... 

Fig. 4 Simulation of TSM resonator frequency response in the vicinity of film resonance. Panels 1-5 represent increasing film thickness (as labeled). Panels a show impedance components for the resonator (dotted line), the film (dashed line), and the composite resonator (full line). Panels b show calculated admittance (as would...

K.B. Alici, A.B. Turhan, C.M. Soukouhs, E. Ozbay, Optically thin composite resonant absorber at the near-infrared band a polarization independent and spectrally broadband configuration. Opt Express 19 (15), 14260-14267 (2011)... 

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