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- Li, C. (author)
Achromatic optical waveplates based on cellulose nanocrystals
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-06-16
- Springer Science and Business Media B.V.2021
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-309933
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-309933URI
- https://doi.org/10.1007/s10570-021-03996-3DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20220321
- Cellulose nanocrystals (CNCs) derived from native cellulose can self-assemble into liquid crystals (LCs) and preserve the LC alignment in solid films that are attractive for the preparation of optical materials and devices from bottom-up manufacturing. Birefringent aligned CNC films provide the desired phase retardation for a narrow band of wavelengths due to the intrinsic wavelength-dependent birefringence of CNCs. Here, we produce a 1/4 λ achromatic CNC-based waveplate consisting of three layers of birefringent CNC films with phase retardations and slow axis directions, which are calculated by Jones Matrix, with optimized achromatic properties. Three uniform CNC films are prepared by aligning nematic CNC LCs doped with polyethylene glycol on patterned polydimethylsiloxane substrates. The fabricated achromatic waveplate is characterized by measuring the transmission spectra, and its maximum deviation of phase retardation is around 0.06 for the wavelength range of 460–660 nm. The achromatic performance is improved by one order of magnitude compared with the single birefringent CNC films. Our CNC-based achromatic waveplate has good optical homogeneity, flexibility and can be tailored into arbitrary shape.
Subject headings and genre
- NATURVETENSKAP Kemi Polymerkemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Polymer Chemistry hsv//eng
- Achromatism
- Cellulose nanocrystals
- Liquid crystals
- Nematics
- Waveplates
- Birefringence
- Cellulose
- Cellulose derivatives
- Cellulose films
- Silicones
- Arbitrary shape
- Cellulose nanocrystal (CNCs)
- Liquid crystals (LCs)
- Native cellulose
- Optical homogeneity
- Phase retardation
- Transmission spectrums
- Wavelength ranges
- Film preparation
- Phases
- Polysilicones
- Retardation
- Spectra
Added entries (persons, corporate bodies, meetings, titles ...)
- Wang, N. (author)
- Evans, J. (author)
- He, SailingKTH,Elektroteknisk teori och konstruktion,Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058, China(Swepub:kth)u1tir6md (author)
- KTHElektroteknisk teori och konstruktion (creator_code:org_t)
Related titles
- In:Cellulose: Springer Science and Business Media B.V.28:11, s. 6983-69930969-02391572-882X
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- Cellulose
- By the university
- Royal Institute of Technology
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