Ảnh bìa

Generation of sub-wavelength longitudinal magnetization needle and multiple longitudinal spots using circularly polarized beam through an annular walsh function filter

Đã lưu trong:
Xuất bản năm:Journal of Optics vol. 53, no. 3 (Jul 2024), p. 2192
Tác giả chính: Thiruarul, D.
Tác giả khác: Charles, J. William, Lavanya, M., Rajesh, K. B., Jaroszewicz, Z.
Được phát hành:
Springer Nature B.V.
Những chủ đề:
Walsh function
Faraday effect
Magnetic recording
Multilayers
Diffraction theory
Circular polarization
Magnetization
Magnetic fields
Electric fields
Magnetic resonance
Focal plane
Magnetic storage
Gaussian beams (optics)
Truy cập trực tuyến:Citation/Abstract
Full Text
Full Text - PDF
Các nhãn: Thêm thẻ
Không có thẻ, Là người đầu tiên thẻ bản ghi này!
Bài tóm tắt:This numerical work demonstrates the possibility of generating sub wavelength scale magnetization spot of long focal depth and axially separated multiple magnetization segments using annular Walsh function filter. Numerical result calculated on the basis of vector diffraction theory (VDT) and Inverse Faraday Effect (IFE)  shows upon suitably choosing the parameters of Walsh function filter such as order and annular obstruction, one can generate and tune the longitudinal magnetization needle and multiple magnetization spots in the focal plane for the input circularly polarized Bessel Gaussian beam. The generated sub wavelength magnetization structures are highly applicable in fields such as all-optical magnetic recording, multiple trapping and transportation of magnetic particles, magnetic resonance microscopy and multilayer ultra-high-density magnetic storage.
số ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-023-01428-y
Nguồn:Advanced Technologies & Aerospace Database