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Broad Band THz Sensing by 2DEG Bow-Tie-Type Diodes

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Valušis G., Seliuta D., Tamošiūnas V., Širmulis E., Balakauskas S., Gradauskas J., Sužiedėlis A., Ašmontas S., Anbinderis T., Narkūnas A., Papsujeva I., Lisauskas A., Roskos H., Köhler K.

Acta Physica Polonica A

2005

vol. 107

issue 1

184-187

We suggest a novel approach to detect broad band, 0.078-2.52 THz, electromagnetic radiation at room temperature using an asymmetrically-shaped bow-tie diode based on a modulation-doped GaAs/AlGaAs structure. We show that the voltage sensitivity in the range from 0.078 THz up to 0.8 THz has a plateau and its value is within 0.3-0.5 V/W. We consider the bow-tie diode design to increase the sensitivity of the device.

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1 Acta Physica Polonica A

1 2005

1 Anbinderis T.

1 Ašmontas S.

1 Balakauskas S.

1 Gradauskas J.

1 Köhler K.

1 Lisauskas A.

1 Narkūnas A.

1 Papsujeva I.

1 Roskos H.

1 Seliuta D.

1 Sužiedėlis A.

1 Tamošiūnas V.

1 Valušis G.

1 Širmulis E.

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Broad Band THz Sensing by 2DEG Bow-Tie-Type Diodes