Analysis of Beam Steering of an Optical Nanoantenna Array
نام عام مواد
[Thesis]
نام نخستين پديدآور
Brar, Jarmanjeet Singh
نام ساير پديدآوران
Ahmed, Aftab
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
California State University, Long Beach
تاریخ نشرو بخش و غیره
2020
يادداشت کلی
متن يادداشت
43 p.
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.S.
کسي که مدرک را اعطا کرده
California State University, Long Beach
امتياز متن
2020
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
Recent developments in nanofabrication technologies and plasmonics have generated a considerable interest for the field of nanoantenna, and several studies are being carried out to adapt the tested microwave and millimeter wave antenna concepts to the nanoantennas. The creation of phased arrays in the optical domain is an active area of research due to its applications in various fields such as sensing, optical microscopy, nanoscale imaging and spectroscopy, photovoltaics and many more. This thesis proposes the design of an optical phased nanoantenna array composed of metal and dielectric elements. The array is able to accomplish beam steering without any physical movement of the source or the array structure and without the involvement of electrical components such as phase shifters/drivers. As electrical components or hardware elements are not used, our design is relatively simpler, more practical and require minimum maintenance. Our design achieves beam steering by controlling progressive phase difference between consecutive dielectric elements. The phase difference between the elements is controlled by changing the refractive index of the electrically tunable dielectric elements by applying an external electric field. To analyze the design, an equivalent model was constructed using FDTD software and simulations were carried out for a range of refractive indices. Results from simulations showed that the design can attain a maximum beam steering angle of 58.6 degrees.
اصطلاحهای موضوعی کنترل نشده
اصطلاح موضوعی
Computer science
اصطلاح موضوعی
Electrical engineering
اصطلاح موضوعی
Information technology
اصطلاح موضوعی
Nanotechnology
اصطلاح موضوعی
Optics
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )