Lực quang học tác động lên vi hạt trong chùm tia laser dạng Gauss vòng
77 lượt xemDOI:
https://doi.org/10.54939/1859-1043.j.mst.96.2024.131-136Từ khóa:
Kìm quang học; Quang lực; Laser; Vi hạt.Tóm tắt
Bài báo trình bày kết khảo sát số quang lực tác động lên hạt nano trong chùm tia laser có cấu trúc Gauss vòng. Chùm tia có phân bố cường độ theo hàm Gauss vòng tạo ra từ các hệ quang phi tuyến được mô tả gần đúng bằng biểu thức toán học. Trên cơ sở đó, chúng tôi tính quang lực tác động lên các vi hạt có kích thước nano với chiết suất lớn hơn và nhỏ hơn chiết suất môi trường. Phân bố quang lực trong không gian chùm tia đã được khảo sát số, phân tích và bình luận nhằm mục đích nghiên cứu động học của các vi hạt trong kìm quang học.
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