Date of Award
11-2022
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Electrical and Computer Engineering
Committee Chair/Advisor
Judson Ryckman
Committee Member
William Harrell
Committee Member
Goutam Koley
Abstract
Planar optical devices offer a lightweight solution to the constraints found in traditional optical devices. While subwavelength patterning of optics offers attractive performance and size, traditional fabrication methods demand a trade-off between resolution and throughput that presents a significant hurdle for the widespread use of subwavelength devices. Nanoimprinting of refractive index (NIRI) is a novel fabrication method pioneered in previous work that offers promise in mitigating the throughput issues that hamstring traditional fabrication methods. However, NIRI has not been shown to impart full $2\pi$ phase control in planar optical devices, nor has a method for fabricating arbitrary designs using the NIRI process been demonstrated. Recently, we have developed a method by which arbitrary optics with full phase control may be designed and a corresponding NIRI stamp fabricated. Using this method, we have designed a series of optical devices to include blazed diffraction gratings, spiral phase plates, one-dimensional hyperbolic lenses, and Fresnel lenses. In order to vet this design method, two Fresnel lenses with $f_1 = 75\mu$m and $f_2 = 125\mu$m are simulated using finite difference time domain (FDTD). Results of ideal lenses as well as lenses with intentionally included fabrication errors are included. Additionally, the effects of reducing the digital resolution of NIRI lenses designed using this method are examined.
Recommended Citation
Panipinto, Matthew, "Design of Arbitrary Planar Optical Devices With Full Phase Control Using Nanoimprinting of Refractive Index" (2022). All Theses. 3921.
https://open.clemson.edu/all_theses/3921
Included in
Electromagnetics and Photonics Commons, Electronic Devices and Semiconductor Manufacturing Commons, Nanoscience and Nanotechnology Commons, Nanotechnology Fabrication Commons