Theoretical Physics & Computational Optics

Dr. Eric A. Ramirez

Principal Investigator and Computational Physicist at EAR-Co. Specializing in nonlinear crystal phase-matching, spontaneous parametric down-conversion (SPDC) engineering, thin-film optical dispersion synthesis, and numerical simulation architecture.

Discipline Quantum Optics
Terminal Degree Ph.D. in Applied Physics
Core Architecture TMM & Nonlinear SPDC
Codebases C++, Python, Flask, CUDA
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Life & Scientific Trajectory

Foundations & Computation
Trajectory & Vision

Bridging Fundamental Wave Mechanics with High-Performance Computing

From his earliest inquiries into electromagnetic radiation and analytical mathematics, Dr. Ramirez was captivated by how boundary conditions govern light behavior at quantum thresholds. What began as a curiosity about optical waveguides and laser cavity resonance evolved into a lifelong commitment to deciphering how engineered dielectric structures and nonlinear lattices can mold non-classical states of light.

Rather than separating theoretical exploration from applied software, he treats scientific programming as an indispensable computational telescope. His approach pairs rigorous analytical formulations—such as the Sellmeier equations and transfer matrix methods—with performant, modular code, empowering researchers to simulate physical phenomena that defy closed-form analytical solutions.

At EAR-Co, he directs research on custom-poled lithium niobate crystals, continuous-variable entangled states, and bespoke optical coatings, architecting the underlying computational engines that power the laboratory's real-time diagnostic platforms.

Passion for Science

Core Inquiry

Driven by non-equilibrium quantum electrodynamics, biphoton wavepacket tailoring, and the quest to maximize quantum visibility across interferometric setups without loss of spectral purity.

SPDC Modeling Quasi-Phase Matching Thin-Film Photonics HOM Interference

Passion for Programming

Implementation

Passionate about writing clean, reproducible mathematical routines. Believes scientific tools should provide immediate numerical feedback and deterministic visualization for experimentalists.

Python & NumPy Flask REST Engines C++ Numerical Kernels Semantic CSS / Clean Web UI
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Academic Formation

Bachelors, Masters & Ph.D.
B.S. 2012 — 2016

B.S. in Physics & Applied Mathematics

National Autonomous University
Focus & Honors

Graduated Summa Cum Laude. Undergraduate thesis centered on numerical solutions of Maxwell's equations in anisotropic crystalline media and electro-optic modulation.

M.S. 2016 — 2018

M.S. in Optics & Photonics

Center for Scientific Research & Higher Education
Focus & Research

Investigated dielectric thin-film stack optimization using the Transfer Matrix Method (TMM) and group delay dispersion (GDD) compensation algorithms for femtosecond laser optics.

PH.D. 2018 — 2023

Ph.D. in Applied Physics (Quantum Optics)

Institute of Applied Physical Sciences
Focus & Doctoral Dissertation

Pioneered non-linear domain engineering and aperiodic quasi-phase matching in periodically poled lithium niobate (PPLN) waveguides for high-purity heralded photon sources.

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Dissertation & Peer-Reviewed Papers

Academic Contributions
Doctoral Dissertation Defended with High Distinction • 2023

"Synthesis of Tailored Biphoton States via Spatially Chirped Quasi-Phase-Matching and Multi-Layer Optical Thin-Film Dispersion Engineering"

This doctoral thesis investigates the theoretical limits and algorithmic synthesis of tailored two-photon state generation in nonlinear optical materials. By coupling Transfer Matrix Method (TMM) boundary analysis with numerical inversion of the joint spectral amplitude (JSA), the dissertation establishes a unified mathematical and computational framework for generating broadband, unentangled photon pairs with high visibility Hong-Ou-Mandel interference.

OFFICIAL CITATION: Ramirez, E. A. (2023). Synthesis of Tailored Biphoton States via Spatially Chirped Quasi-Phase-Matching and Multi-Layer Optical Thin-Film Dispersion Engineering (Doctoral dissertation). Institute of Applied Physical Sciences. Advisors: Dr. M. Vance & Dr. S. K. Chen.
[01] 2024

Broadband Hong-Ou-Mandel Dip Visibility Maximization in Aperiodically Poled LiNbO3 Waveguides

Ramirez, E. A., Vance, M. H., and Thorne, L. B.
Physical Review Applied, Vol. 21, Iss. 3, 034012