Pyroelectric properties of a VDF/TrFE-on-silicon sensor

Simonne, J.J.; Bauer, F.; Audaire, Luc

doi:10.1080/00150199508018436

Cited by 12 publications

(14 citation statements)

References 34 publications

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“…In particular, the bandwidth is much closer to that of the sinusoidal case. Several groups have published responsivity curves that use sinusoidally modulated radiation [2][6], and we believe that their results will be accurate. Some results were achieved using modulation of an unspecified form (e.g.…”

Section: Discussionmentioning

confidence: 99%

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Harmonic errors associated with the use of choppers in optical experiments

2006

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Section: Discussionmentioning

confidence: 99%

“…This type of experiment has been reported widely in the literature (e.g. Schopf et al [1], Simonne et al [2].) Although solid-state modulators, such as LCD shutters, are available, they generally do not work in the mid to far infrared.…”

Section: Modulation Techniquesmentioning

confidence: 99%

Harmonic errors associated with the use of choppers in optical experiments

2006

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“…The multilayer sensor has a voltage responsivity that differs from that of a pyroelectric crystal for the presence of a multipole structure [20]. Recently, a more general analysis, suitable for multilayer structures, was performed in terms of a set of thermal diffusion equations in the regime of unidirectional thermal wave generation inside the detector [21].…”

Section: Theoretical Background Of Temporal Response Modelingmentioning

confidence: 99%

Pyroelectric PVDF sensor modeling of the temporal voltage response to arbitrarily modulated radiation

Capineri

Masotti

Mazzoni³

2000

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Our design of transducer arrays for custom pyroelectric sensors is mainly devoted to IR laser beam characterization and control. It benefits from some of the properties of PVDF film such as low cost, low weight, mechanical flexibility, chemical stability (inert), and compatibility of thick film interconnection technologies on metallized films. By using the temporal characteristics of the source intensity and starting from a standard equivalent one-dimensional model of a multilayer thick-film transducer in the frequency domain, we developed a computer model of the PVDF sensor that determines the temporal response to arbitrarily modulated radiation. The validation of the model accuracy has been carried out with a simulation procedure performed on a PVDF sensor designed for accurate beam alignment of low power laser beams. In this case, an iterative algorithm also was developed to estimate some thermal and physical properties of the front absorbing and the metallization layers that are generally barely known. We present a fitting procedure to determine these properties by using the temporal pyroelectric response to a square wave modulated laser diode that provides a reliable reference signal.

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“…This fabrication technology based on multilayer thick films allows the design of low-cost pyroelectric sensors with typical bandwidths at 6 dB from 4 Hz to 15 kHz [8] characterized by voltage responsivities with poles and zeros related to material properties [9], [10]. In Section II, we report the characterization of the designed sensor prototype.…”

Section: Introductionmentioning

confidence: 99%

CO/sub 2/ laser pulse monitoring instrument based on PVDF pyroelectric array

et al. 2005

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This paper proposes to extend the use of low-cost, pyroelectric, polyvinylidene fluoride four-quadrant arrays, originally devoted to monitoring the beam point stability of CO 2 laser beams, to the temporal profiling of the same laser pulse providing an instrument that is not commercially available. The advantage of using a single sensor for both types of measurements can be fully exploited if the pyroelectric sensor bandwidth is made almost flat in the typical frequency range (10 Hz-20 kHz) of the signal spectrum generated by a modulated CO 2 laser. In this paper, we present the design of an active analog compensation filter aimed to improve the reconstruction accuracy of the laser pulses and its circuit implementation with a quad operational amplifier for an easy integration of the compensation filter on the same board hosting the sensor. Experimental results obtained with modulated CO 2 laser beams, at pulse repetition rates from 10 to 1000 Hz and variable duty cycle, proved accurate in the laser pulse reconstruction with sensitivity of commercial semiconductor HgCdZnTe sensors.

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Pyroelectric properties of a VDF/TrFE-on-silicon sensor

Cited by 12 publications

References 34 publications

Harmonic errors associated with the use of choppers in optical experiments

Harmonic errors associated with the use of choppers in optical experiments

Pyroelectric PVDF sensor modeling of the temporal voltage response to arbitrarily modulated radiation

CO/sub 2/ laser pulse monitoring instrument based on PVDF pyroelectric array

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