상세정보
학술지
Electrically Tunable Binary Phase Fresnel Lens Based on a Dielectric Elastomer Actuator
- 발행일
- 201710
- 출처
- Optics Express, v.25 no.20, pp.23801-23808
- ISSN
- 1094-4087
- 출판사
- Optical Society of America(OSA)
- 협약과제
- 17JS1200, 능동 가변 렌즈 어레이용 광학계 연구, 박선택
- 초록
- We propose and demonstrate an all-solid-state tunable binary phase Fresnel lens with electrically controllable focal length. The lens is composed of a binary phase Fresnel zone plate, a circular acrylic frame, and a dielectric elastomer (DE) actuator which is made of a thin DE layer and two compliant electrodes using silver nanowires. Under electric potential, the actuator produces in-plane deformation in a radial direction that can compress the Fresnel zones. The electrically-induced deformation compresses the Fresnel zones to be contracted as high as 9.1% and changes the focal length, getting shorter from 20.0 cm to 14.5 cm. The measured change in the focal length of the fabricated lens is consistent with the result estimated from numerical simulation.
- KSP 제안 키워드
- All-solid-state, Dielectric elastomer(DE), Dielectric elastomer actuator(DEA), Focal length, Fresnel Zone Plate, In-plane deformation, Numerical simulations, Silver nanowires(AgNWs), compliant electrodes, electric potential, electrically tunable