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Huddad, Laeim. Design and investigation of a small-sized metalens to enhance laser efficiency and investigation of optical properties of a Silicon nano-brick metasurface grating. Master's Degree(Physics). Kasetsart University. Office of the University Library. : Kasetsart University, 2022.
Design and investigation of a small-sized metalens to enhance laser efficiency and investigation of optical properties of a Silicon nano-brick metasurface grating
Name: Huddad, Laeim
Classification :.LCCS: QC661
LCSH:
Wave guides
LCSH:
Silicon
LCSH:
Lasers
LCSH:
Metasurfaces
Abstract:
Metasurfaces are composed of periodic pattern of subwavelength structure. They have been of great interest to the scientific community due to their interaction with light in ways that cannot be found in nature. Among various types of metasurfaces, metalenses are ones with promising applications because they can bend and focus light in a confined space. In contrast to conventional refractive lenses, the metalenses are ultra-thin slab with only a few nanometers in thickness suitable for limited space system. However, designing a very thin metalens with requirement of high efficiency is a huge challenge. We designed a high NA metalens with a diameter of less than 25 mm to focus an 830 nm laser beam onto the waveguide situated only a few microns from the laser. The metalens was designed with FDTD simulation and fabricated by distributing Si nanofin structures in a particular pattern using standard electron beam lithography. Determining the efficiency of the metalens itself is a challenge due to small focal spot and background light. Thus, grating of similar physical shape of nano-bricks was used instead for finding efficiency of the metalens. By inspecting diffracted light from metasurface grating, the efficiency of metalens was determined. Here we present the process of designing the metalens, fabrication and testing its efficiency to provide the best solution for limited space optical system.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Nattaporn Chattham
Role:
Thesis Advisor
Role:
Thesis CO-Advisor
Name: Papichaya Chaisakul
Role:
Thesis CO-Advisor
Created:
2022
Modified:
2025-07-24
Issued:
2025-07-24
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2565/huddad-lae-all.pdf
CallNumber:
QC661 .H83
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Physics
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.036157 วินาที
Huddad, Laeim
| Title | Contributor | Type |
|---|---|---|
| Design and investigation of a small-sized metalens to enhance laser efficiency and investigation of optical properties of a Silicon nano-brick metasurface grating
มหาวิทยาลัยเกษตรศาสตร์ Huddad, Laeim | Nattaporn Chattham | วิทยานิพนธ์/Thesis |
Nattaporn Chattham
| Title | Creator | Type and Date Create |
|---|---|---|
| Probing chirality of lipid tubular by confocal raman microscopy
มหาวิทยาลัยเกษตรศาสตร์ Nattaporn Chattham | Jarinee Kiang-ia | วิทยานิพนธ์/Thesis |
| Use of lipid nanotubules for controlled drug delivery
มหาวิทยาลัยเกษตรศาสตร์ Nattaporn Chattham | Namphung Peimyoo | วิทยานิพนธ์/Thesis |
| The applications of optical tweezers and excimer laser in protoplast fusion
มหาวิทยาลัยเกษตรศาสตร์ Sompid Samipak;Nattaporn Chattham ;Kiattawee Choowongkomon | Titirat Kantawang | วิทยานิพนธ์/Thesis |
| Design and investigation of a small-sized metalens to enhance laser efficiency and investigation of optical properties of a Silicon nano-brick metasurface grating
มหาวิทยาลัยเกษตรศาสตร์ Nattaporn Chattham | Huddad, Laeim | วิทยานิพนธ์/Thesis |
Apichart Pattanaporkratana
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|---|---|---|
| Optical-vortex generation and detection using spatial light modulator (SLM)
มหาวิทยาลัยเกษตรศาสตร์ Apichart Pattanaporkratana | Suvipak Chomdaeng | วิทยานิพนธ์/Thesis |
Papichaya Chaisakul
| Title | Creator | Type and Date Create |
|---|---|---|
| Optimization of optical coupling between Silicon nitride, Silicon, and Germanium quantum wells optical waveguide for integrated optics applications
มหาวิทยาลัยเกษตรศาสตร์ Papichaya Chaisakul | Natdanai Khongpetch | วิทยานิพนธ์/Thesis |
| Optical waveguide sensor based-on mid-infrared absorption on silicon chip
มหาวิทยาลัยเกษตรศาสตร์ Papichaya Chaisakul | Natnicha Koompai | วิทยานิพนธ์/Thesis |
| Efficient optical coupling between LED Mid-IR light sources and compact optical waveguide for broadband spectroscopic sensing applications
มหาวิทยาลัยเกษตรศาสตร์ Papichaya Chaisakul | Pawaphat Jaturaphagorn | วิทยานิพนธ์/Thesis |
| Waveguide-integrated plasmonic GermaniumSilicon Germanium quantum well photodetector
มหาวิทยาลัยเกษตรศาสตร์ Papichaya Chaisakul | Saranisorn Srikam | วิทยานิพนธ์/Thesis |
| Low-energy Germanium Silicon-based electro-optical devices
มหาวิทยาลัยเกษตรศาสตร์ Papichaya Chaisakul | Worawat Traiwattanapong | วิทยานิพนธ์/Thesis |