High-efficiency uni-travelling-carrier photomixer at 1.55 [micro sign]m and spectroscopy application up to 1.4 THz
- 1 January 2008
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 44 (22) , 1320-1322
- https://doi.org/10.1049/el:20082219
Abstract
The fabrication of InGaAs/InP uni-travelling-carrier photodiodes integrated with broadband horn antennas and demonstration of photomixing up to 1.8 THz are reported. A radiated power of 1.1 µW at 940 GHz was measured for a photocurrent of only 2.75 mA (50 mW optical power), demonstrating the high efficiency of the device. The conversion efficiency obtained has been increased by more than a decade compared to the best reported values in the literature. The photomixer is used to identify the 1411 GHz water vapour absorption line at atmospheric pressure.Keywords
This publication has 8 references indexed in Scilit:
- Continuous terahertz-wave generation using a monolithically integrated horn antennaApplied Physics Letters, 2008
- Continuous wave terahertz generation up to 2THz by photomixing on ion-irradiated In0.53Ga0.47As at 1.55μm wavelengthsApplied Physics Letters, 2007
- Efficient terahertz emission from ballistic transport enhanced n-i-p-n-i-p superlattice photomixersApplied Physics Letters, 2007
- Integrated terahertz TEM horn antennaElectronics Letters, 2007
- Photonic generation of continuous THz wave using uni-traveling-carrier photodiodeJournal of Lightwave Technology, 2005
- Photonic terahertz-wave generation using antenna-integrated uni-travelling-carrier photodiodeElectronics Letters, 2003
- Optical properties of Zitex in the infrared to submillimeterApplied Optics, 2003
- Photomixing and photoconductor measurements on ErAs/InGaAs at 1.55 μmApplied Physics Letters, 2003