Crystal domain mapping with polarized raman spectroscopy and Chi-(2) nonlinear optics in CMOS waveguides
Abstract/Contents
- Abstract
- Polarized Raman spectra collected from a diffraction-limited spatial volume constitute a versatile scanning probe. Polarization selection rules for Raman scattering in crystals provide a signature of local symmetry and orientation. Making use of this, I demonstrate orientation-resolved domain mapping in tetragonal strontium titanate (SrTiO3) and discuss the relevance of this technique to the study of electronic materials exhibiting emergent spatial inhomogeneity. In Second-order nonlinear optical susceptibility is forbidden to dipole order in inversion-symmetric media, however this rule can be broken with an applied DC electric field. Historically known as electric field induced second harmonic (EFISH) generation, this effect can be understood as four-wave mixing between three optical electric fields and one DC electric field. The dense integration of microelectronic devices with optical waveguides available in CMOS photonics enables strong EFISH using relatively modest voltages and periodically-poled DC electric fields for quasi-phase- matched three-wave mixing. I will discuss device design and characterization efforts aimed at developing on-chip optical parametric oscillators and up-conversion detectors for mid- infrared light.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2019; ©2019 |
| Publication date | 2019; 2019 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Gray, Dodd Joseph | |
|---|---|---|
| Degree supervisor | Mabuchi, Hideo | |
| Thesis advisor | Mabuchi, Hideo | |
| Thesis advisor | Miller, D. A. B | |
| Thesis advisor | Vuckovic, Jelena | |
| Degree committee member | Miller, D. A. B | |
| Degree committee member | Vuckovic, Jelena | |
| Associated with | Stanford University, Department of Electrical Engineering. |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Dodd Joseph Gray Junior. |
|---|---|
| Note | Submitted to the Department of Electrical Engineering. |
| Thesis | Thesis Ph.D. Stanford University 2019. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2019 by Dodd Joseph Gray
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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