Abstract:
We report the results of our study of the input bandwidth of hot electron bolometers (HEB) embedded into the planar log-spiral antenna. The sensitive element is made of t...Show MoreMetadata
Abstract:
We report the results of our study of the input bandwidth of hot electron bolometers (HEB) embedded into the planar log-spiral antenna. The sensitive element is made of the ultrathin superconducting NbN film patterned as a bridge at the feed of the antenna. The contacts between the antenna and a sensitive element are made from in situ deposited gold (i.e., deposited over NbN film without breaking vacuum), which gives high quality contacts and makes the response of the HEB at higher frequencies less affected by the RF loss. An accurate experimental spectroscopic procedure is demonstrated that leads to the confirmation of the wide ( 8 THz) bandwidth in this antenna coupled device.
Published in: IEEE Transactions on Terahertz Science and Technology ( Volume: 2, Issue: 4, July 2012)
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- IEEE Keywords
- Index Terms
- Hot Electrons ,
- Input Bandwidth ,
- Higher Frequency ,
- Planar Antenna ,
- Sensitive Element ,
- Upper Limit ,
- Grating ,
- Photolithography ,
- Beampattern ,
- Antenna Design ,
- Size Of Part ,
- Lift-off Process ,
- High Frequency Structure Simulator ,
- Noise Temperature ,
- Permittivity Of The Substrate ,
- Active Bridge ,
- Off-axis Parabolic Mirror ,
- Radiofrequency Current ,
- THz Range ,
- Part Of The Antenna ,
- Radiation Boundary
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Hot Electrons ,
- Input Bandwidth ,
- Higher Frequency ,
- Planar Antenna ,
- Sensitive Element ,
- Upper Limit ,
- Grating ,
- Photolithography ,
- Beampattern ,
- Antenna Design ,
- Size Of Part ,
- Lift-off Process ,
- High Frequency Structure Simulator ,
- Noise Temperature ,
- Permittivity Of The Substrate ,
- Active Bridge ,
- Off-axis Parabolic Mirror ,
- Radiofrequency Current ,
- THz Range ,
- Part Of The Antenna ,
- Radiation Boundary
- Author Keywords