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Your search keyword '"Fischer, Bernd"' showing total 10 results
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10 results on '"Fischer, Bernd"'

1. Terahertz near-field imaging of dielectric resonators

Author

Lee, Wendy S. L., primary, Kaltenecker, Korbinian, additional, Nirantar, Shruti, additional, Withayachumnankul, Withawat, additional, Walther, Markus, additional, Bhaskaran, Madhu, additional, Fischer, Bernd M., additional, Sriram, Sharath, additional, and Fumeaux, Christophe, additional

Published
2017
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10. Low-cost ultra-thin broadband terahertz beam-splitter

Author

Derek Abbott, Christophe Fumeaux, Brian W.-H. Ng, Benjamin S.-Y. Ung, Bernd Fischer, Hungyen Lin, Ung, Benjamin S-Y, Fumeaux, Christophe, Lin, Hungyen, Fischer, Bernd M, Ng, Brian WH, and Abbott, Derek

Subjects
spectroscopy, business.product_category, Materials science, air, Terahertz radiation, Plastic wrap, rectification, law.invention, lenses, Optics, law, Wafer, pulses, Thin film, business.industry, Equipment Design, Float-zone silicon, Atomic and Molecular Physics, and Optics, Terahertz spectroscopy and technology, Equipment Failure Analysis, Refractometry, Interferometry, Computer-Aided Design, Optoelectronics, business, Refractive index, Terahertz Radiation, Beam splitter
Abstract

A low-cost terahertz beam-splitter is fabricated using ultra-thin LDPE plastic sheeting coated with a conducting silver layer. The beam splitting ratio is determined as a function of the thickness of the silver layer-thus any required splitting ratio can be printed on demand with a suitable rapid prototyping technology. The low-cost aspect is a consequence of the fact that ultra-thin LDPE sheeting is readily obtainable, known more commonly as domestic plastic wrap or cling wrap. The proposed beam-splitter has numerous advantages over float zone silicon wafers commonly used within the terahertz frequency range. These advantages include low-cost, ease of handling, ultra-thin thickness, and any required beam splitting ratio can be readily fabricated. Furthermore, as the beam-splitter is ultra-thin, it presents low loss and does not suffer from Fabry-Pérot effects. Measurements performed on manufactured prototypes with different splitting ratios demonstrate a good agreement with our theoretical model in both P and S polarizations, exhibiting nearly frequency-independent splitting ratios in the terahertz frequency range. Refereed/Peer-reviewed

Published
2012

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