Determination of structural deviations in wire grid polarizers for DUV application wavelengths by transmission spectroscopy in the visible spectral range
Determination of structural deviations in wire grid polarizers for DUV application wavelengths by transmission spectroscopy in the visible spectral range
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通过可见光谱范围内的透射光谱测定 DUV 应用波长的线栅偏振器的结构偏差
DOI:
10.1117/12.2306026
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
S. Kroker
中科院分区:
文献类型:
--
作者:
T. Siefke;W. Dickmann;T. Weichelt;M. Steinert;J. Dickmann;C. B. Rojas Hurtado;B. Bodermann;S. Kroker
The optical performance of wire grid polarizers crucially depends on the fabrication accuracy. Reducing the application wavelengths to the ultraviolet spectral range sets the challenge that structural deviations in the range of typically a few nanometers become comparable to the feature sizes of the structure. In this contribution we present a concept to determine structural parameters and structural deviations of DUV wire grid polarizers fabricated with self-aligned double patterning. To this end, we evaluate the properties (i.e the spectral positions, the angular dependence of the spectral positions and widths) of asymmetry induced resonances in the transmittance spectra which occur at wavelengths larger than 380 nm. We derive requirements for measurement setup for nanoscale determination of the structural properties. Our results indicate that the investigation of the angular dependent transmittance at only two different wavelengths and one polarization state is sufficient to determine structural deviations with uncertainties of ±1:7nm for the effective shift of the ridge and ±0:34° for the effective tilt. Thus, the proposed method allows us to retrieve deep subwavelength structural information at the nanoscale with easily accessible transmittance measurements in the visible spectral range.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Satoshi Kawata;Yukihiro Ozaki
通讯作者:
Yukihiro Ozaki
DOI:
10.1063/1.3280160
发表时间:
2010-02
期刊:
The Review of scientific instruments
影响因子:
--
作者:
M. Wurm;F. Pilarski;B. Bodermann
通讯作者:
M. Wurm;F. Pilarski;B. Bodermann
影响因子:
0.6
作者:
Sang
通讯作者:
Sang
影响因子:
3.6
作者:
T. Siefke;D. Lehr;Thomas Weber;D. Voigt;E. Kley;A. Tünnermann
通讯作者:
A. Tünnermann
影响因子:
3.8
作者:
Lehmuskero, Anni;Kuittinen, Markku;Vahimaa, Pasi
通讯作者:
Vahimaa, Pasi