BYU

Abstract by Erika Jackson

Personal Infomation


Presenter's Name

Erika Jackson

Degree Level

Undergraduate

Co-Authors

Gabriel Valdivia-Berroreta
Karissa Kenney
Adam Wayment
Isaac Tangen
Charles Bahr
Stacey Smith
David Michaelis
Jeremy Johnson

Abstract Infomation


Department

Chemistry and Biochemistry

Faculty Advisor

David Michaelis
Jeremy Johnson
Stacey Smith

Title

Designing Non‐Centrosymmetric Molecular Crystals: Just One Carbon Away

Abstract

THz frequencies are very useful in creating images for security or health purposes. The crystals we create in the lab generate THz when pulsed with an IR laser. There is limited research in THz because the cost of buying a crystal is expensive because one company has a monopoly. Our goal is to create better crystals and create a company that will compete with the monopoly so that other research groups can find more applications to THz frequency.

The difficulty with THz crystals is it is difficult to design and crystallize. In order to produce THz, the crystal must be non-centrosymmetric and have hyperpolarizability. We found that non-centrosymmetric crystals can be produced when there enough distance between the molecules to overcome centrosymmetric stacking caused by dipole-dipole interactions. One of our novel crystals, EHPSI-4NBS illustrates this property and successfully generated THz.