Characterization of micro-powders for the fabrication of compression molded THz lenses

Benedikt Scherger; Steffen Wietzke; Maik Scheller; Nico Vieweg; Matthias Wichmann; Martin Koch; Karin Wiesauer

doi:10.1007/s10762-011-9806-5

Characterization of micro-powders for the fabrication of compression molded THz lenses

Benedikt Scherger, Steffen Wietzke, Maik Scheller, Nico Vieweg, Matthias Wichmann, Martin Koch, Karin Wiesauer

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.

Original language	English (US)
Pages (from-to)	943-951
Number of pages	9
Journal	Journal of Infrared, Millimeter, and Terahertz Waves
Volume	32
Issue number	7
DOIs	https://doi.org/10.1007/s10762-011-9806-5
State	Published - Jul 2011
Externally published	Yes

Keywords

Material parameters
Micro-powders
Quasi-optics
THz spectroscopy

ASJC Scopus subject areas

Radiation
Instrumentation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1007/s10762-011-9806-5

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title = "Characterization of micro-powders for the fabrication of compression molded THz lenses",

abstract = "We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.",

keywords = "Material parameters, Micro-powders, Quasi-optics, THz spectroscopy",

author = "Benedikt Scherger and Steffen Wietzke and Maik Scheller and Nico Vieweg and Matthias Wichmann and Martin Koch and Karin Wiesauer",

note = "Funding Information: Acknowledgements Benedikt Scherger acknowledges financial support from the Friedrich Ebert Stiftung. Nico Vieweg likes to express his appreciation to the Studienstiftung des deutschen Volkes and the Braunschweig International Graduate School of Metrology. Furthermore, we are grateful for the support of the Federal Ministry of Economics and Technology (BMWi), grants 345 ZN, administered by the German Federation of Industrial Research Associations (AiF). The authors would like to thank Micro Powders Inc. for providing the micro-powder materials.",

year = "2011",

month = jul,

doi = "10.1007/s10762-011-9806-5",

language = "English (US)",

volume = "32",

pages = "943--951",

journal = "Journal of Infrared, Millimeter, and Terahertz Waves",

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T1 - Characterization of micro-powders for the fabrication of compression molded THz lenses

AU - Scherger, Benedikt

AU - Wietzke, Steffen

AU - Scheller, Maik

AU - Vieweg, Nico

AU - Wichmann, Matthias

AU - Koch, Martin

AU - Wiesauer, Karin

N1 - Funding Information: Acknowledgements Benedikt Scherger acknowledges financial support from the Friedrich Ebert Stiftung. Nico Vieweg likes to express his appreciation to the Studienstiftung des deutschen Volkes and the Braunschweig International Graduate School of Metrology. Furthermore, we are grateful for the support of the Federal Ministry of Economics and Technology (BMWi), grants 345 ZN, administered by the German Federation of Industrial Research Associations (AiF). The authors would like to thank Micro Powders Inc. for providing the micro-powder materials.

PY - 2011/7

Y1 - 2011/7

N2 - We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.

AB - We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.

KW - Material parameters

KW - Micro-powders

KW - Quasi-optics

KW - THz spectroscopy

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Characterization of micro-powders for the fabrication of compression molded THz lenses

Abstract

Keywords

ASJC Scopus subject areas

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