Date of Graduation

12-2022

Document Type

Thesis

Degree Name

Bachelor of Science in Physics

Department

Physics

Advisor/Mentor

Nakamura, Hiro

Abstract

The field of non-linear optics has gained traction in the last couple decades due to the variable generation of wavelengths which are less deterministic than within traditional optics. Using non-linear mediums, including hollow-core fibers (HCF), generation of wavelengths spanning into the vacuum ultraviolet (VUV) wavelength range is possible. These short wavelengths can be utilized within electron spectroscopy-based methods of material science like angle-resolved photoemission spectroscopy (ARPES). This technique most often uses specific photoemission lines of atoms in discharge lamps, however, with the frequency dispersion capabilities of HCF, broad band creation can allow for variable wavelength selection through filtering specific wavelengths with the continuation of ultrashort pulses in the femtosecond time domain. These characteristics could enhance the field of photoemission spectroscopy. The production of such wavelengths is driven through multiple non-linear effects, including the Kerr effect, high harmonic generation, Raman effect, etc. Using a HCF of 100 mm and an 80 MHz pulsed laser source with a central wavelength of 745 nm, I was able to develop a supercontinuum spanning from <190 nm to >1000 nm.

Keywords

Hollow-Core Fiber, Supercontinuum, Non-Linear Optics, Undergraduate Research

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