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Home Physics Pyroelectric Transmission-Type Sensor

Pyroelectric Transmission-Type Sensor


Pyroelectric transmission-type sensor is a portable system designed to operate simultaneously as a measuring device and a laser window. The sensor is developed to read both temporal and energy characteristics of radiation beams from the high-power industrial lasers operating in a frequency-pulsed mode. The sensor’s response is generated by tertiary pyroelectric effect as a result of inhomogeneous heating of the crystal used. As the laser beam passes through the sensor’s sensitive element with the set of electrically-discontinuous electrodes atop, the polarization produced by the tertiary pyroelectric effect is captured. Then the captured signal is accepted by the processing system that transforms it into a readable form.

General specification

Innovative Aspect and Main Advantages

The distinguishing feature of our transmission-type sensor is the possibility to read out desirable data at any point of the optical system without placement of any extra optical elements. Specific features of the tertiary pyroelectric effect gives advantage to offered sensor by setting the upper limit of the dynamic range up to several kW/cm2, which is determined by the crystal’s resistance to laser radiation in the vicinity of the transparency maximum.

Areas of Application

Transmission–type sensor can be used as:

  • Sensitive element of the control-measuring instruments for industrial lasers;
  • Transmitting optical element for feedback systems;
  • Multifunctional element for laser beam focusing and simultaneous measuring of beam’s intensity;
  • Laser exit window capable of measuring laser beam intensity.

Pyroelectric transmission-type receiver
Fig. 1 Pyroelectric transmission-type receiver

Pyroelectric transmission-type receiver in use
Fig. 2 Pyroelectric transmission-type receiver in use

Contact Details

Technology Transfer Office
Organization: Institute of Physics
Adress: 46, Nauky Avenue, 03680, Kyiv, Ukraine
(+38 044) 525 9841, Fax: (+38 044)525 1589
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