We present a voltage-tunable wavelength-selective photodetector (VWP) for the near-infrared (NIR), realized by engineering the optical properties of Si and Ge. The structure exhibits a wide tunability by varying the applied voltage and weighting the photocurrents generated by two back-to-back diodes. We demonstrate its versatility in deconvolving signals of different wavelengths and a preliminary study on the applications of the VWP as a solid-state spectrum analyzer, The spectrum of NIR light impinging the device can be resolved from a set of photocurrent measurements for different bias voltages. (C) 1998 American Vacuum Society.
Masini, G., Colace, L., Assanto, G., Pearsall, T.p., Presting, H. (1998). Voltage-tunable near-infrared photodetector: Versatile component for optical communication systems. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. B, 16(5), 2619-2622 [10.1116/1.590244].
Voltage-tunable near-infrared photodetector: Versatile component for optical communication systems
COLACE, Lorenzo;ASSANTO, GAETANO;
1998-01-01
Abstract
We present a voltage-tunable wavelength-selective photodetector (VWP) for the near-infrared (NIR), realized by engineering the optical properties of Si and Ge. The structure exhibits a wide tunability by varying the applied voltage and weighting the photocurrents generated by two back-to-back diodes. We demonstrate its versatility in deconvolving signals of different wavelengths and a preliminary study on the applications of the VWP as a solid-state spectrum analyzer, The spectrum of NIR light impinging the device can be resolved from a set of photocurrent measurements for different bias voltages. (C) 1998 American Vacuum Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
