Efficient composite broadband polarization retarders and polarization filters

18th International School on Condensed Matter Physics: "Challenges of Nanoscale Science: Theory, Materials, Applications"

Dimova, E.^1 ; Ivanov, S.S.^3 ; Popkirov, G.^2 ; Vitanov, N.V.^3

Institute of Solid State Physics, BAS, 72 Tzarigradsko Chaussée Blvd., Sofia

1784, Bulgaria^1

Central Laboratory for Solar Energy and New Energy Sources, BAS, 72 Tzarigradsko Chaussee Blvd., Sofia

1784, Bulgaria^2

Department of Physics, St. Kliment Ohridski University of Sofia, 5 James Bourchier Blvd., Sofia

1164, Bulgaria^3

关键词: Composite filter;    Composite pulse;    Composite stacks;    Half waveplate;    Multiple orders;    Polarization filters;    Quantum physics;    Transmission spectrums;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/558/1/012033/pdf
DOI  :  10.1088/1742-6596/558/1/012033

来源: IOP

【 摘 要 】

A new type of broadband polarization half-wave retarder and narrowband polarization filters are described and experimentally tested. Both, the retarders and the filters are designed as composite stacks of standard optical half-wave plates, each of them twisted at specific angles. The theoretical background of the proposed optical devices was obtained by analogy with the method of composite pulses, known from the nuclear and quantum physics. We show that combining two composite filters built from different numbers and types of waveplates, the transmission spectrum is reduced from about 700 nm to about 10 nm width.We experimentally demonstrate that this method can be applied to different types of waveplates (broadband, zero-order, multiple order, etc.).