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Large pyroelectric effect in Fe-doped lithium niobate induced by a high-power short-pulse laser

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5 Author(s)
Kitamura, Kenji ; WPI Center for NanoMaterials Architectonics (MANA/NIMS), 1-1 Namiki, Tsukuba 3050044, Japan ; Hatano, Hideki ; Takekawa, S. ; Schutze, Daniel
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We demonstrate the pyroelectric effect induced by a short pulse laser with an intensity up to 6 MW/cm2 which is used to heat the Fe-doped Lithium niobate crystal. 0.2 °C temperature rise induced by a 10 ns laser pulse causes a very large current peak (up to 25 mA) since the rate of temperature rise is extremely large comparing with that induced by using an ordinary heater. On the other hand, the pyroelectric current during the cooling is much smaller because of the slow cooling rate by thermal conduction.

Published in:

Applied Physics Letters  (Volume:97 ,  Issue: 8 )

Date of Publication:

Aug 2010

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