Measurement error caused by quarter-wave plate in the dynamic interferometer: Theory and correction method

Dynamic measurement of explosion containment vessel deformation for explosive experiment is obtained using laser doppler effect. The system is based on optical heterodyning technologies, and uses half wave plate, quarter wave plate, polarization beam splitter and acousto-optic modulator to improve the intensity of doppler signal and signal-noise-ratio. Short time fourier transform and energy centrobaric correction method using hamming window is applied to improve the signal processing speed and the accuracy. The experimental results of explosive container are presented under 20g TNT explosion.

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Design and Measurement of a Terahertz Large-Aperture Quarter-Wave Plate with Double-layer Metal Cut Wires on a Flexible and Thin Film

IEEJ Transactions on Sensors and Micromachines ◽

10.1541/ieejsmas.135.478 ◽

2015 ◽

Vol 135 (11) ◽

pp. 478-479

Author(s):

Takehito Suzuki ◽

Ryuji Ohuchi ◽

Nozomu Koja ◽

Koki Ishihara

Keyword(s):

Thin Film ◽

Double Layer ◽

Quarter Wave Plate ◽

Wave Plate ◽

Large Aperture ◽

Quarter Wave

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Broadband In-Cell Quarter Wave Plate using a Combination of Solution-processed Self-aligning Liquid Crystal Polymer by Coating Technique and Photoalignment

Proceedings of the International Display Workshops ◽

10.36463/idw.2019.0314 ◽

2019 ◽

pp. 314

Author(s):

Zhibo SUN ◽

Zhengnan YUAN ◽

Abhishek Kumar Srivastava ◽

Hoi-Sing KWOK

Keyword(s):

Liquid Crystal ◽

Liquid Crystal Polymer ◽

Quarter Wave Plate ◽

Solution Processed ◽

Coating Technique ◽

Wave Plate ◽

Crystal Polymer ◽

Quarter Wave

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None sharp corner localized surface plasmons resonance based ultrathin metasurface single layer quarter wave plate

Scientific Reports ◽

10.1038/s41598-021-88540-w ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Qinyu Qian ◽

Pengfei Liu ◽

Li Fan ◽

Liang Zhao ◽

Chinhua Wang

Keyword(s):

Surface Plasmons ◽

Amplitude Ratio ◽

Single Layer ◽

Quarter Wave Plate ◽

Localized Surface Plasmons ◽

Sharp Corner ◽

Wave Plate ◽

Nanophotonic Devices ◽

Elliptical Ring ◽

Quarter Wave

AbstractWe report on a non-sharp-corner quarter wave plate (NCQW) within the single layer of only 8 nm thickness structured by the Ag hollow elliptical ring array, where the strong localized surface plasmons (LSP) resonances are excited. By manipulating the parameters of the hollow elliptical ring, the transmitted amplitude and phase of the two orthogonal components are well controlled. The phase difference of π/2 and amplitude ratio of 1 is realized simultaneously at the wavelength of 834 nm with the transmission of 0.46. The proposed NCQW also works well in an ultrawide wavelength band of 110 nm, which suggests an efficient way of exciting LSP resonances and designing wave plates, and provides a great potential for advanced nanophotonic devices and integrated photonic systems.

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