University of San Diego

What you'll study

The programme centres on original research in optics and quantum chemistry embedded within a structured sequence of advanced coursework and professional training. Students typically follow an initial period of coursework covering advanced quantum mechanics, molecular spectroscopy, statistical mechanics, and computational chemistry methods, together with specialised modules in nonlinear optics, ultrafast phenomena, and solid-state photonics.

• Core topics: advanced quantum chemistry, time-dependent quantum mechanics, density functional theory, many-body methods, and molecular electronic structure.
• Optics and spectroscopy: linear and nonlinear optical spectroscopy, ultrafast pump–probe techniques, Raman and coherent multidimensional spectroscopy, and laser–matter interaction.
• Computational methods: ab initio and semi-empirical approaches, excited-state dynamics, quantum dynamics, and high-performance computing for photonic materials.
• Laboratory and instrumentation: hands-on training with lasers, detectors, cryogenic and vacuum systems, and optical characterisation equipment, where relevant to a student’s research programme.
• Professional skills: research seminars, journal clubs, teaching or mentoring assignments, scientific communication, and grant-writing workshops.

PhD students undertake original research under the supervision of a faculty advisor, culminating in a written dissertation and an oral defence. Progress milestones commonly include qualifying/comp exams, proposal defence, annual reviews, and publication of research in peer-reviewed journals.

Entry requirements

Applicants are expected to hold a recognised bachelor’s degree in chemistry, physics, materials science or a closely related discipline; a master’s degree with significant research experience is advantageous. Successful candidates demonstrate a strong foundation in physical chemistry and quantum mechanics, demonstrated laboratory or computational experience relevant to optics or photophysics, and the ability to conduct independent research.

• Academic preparation: strong undergraduate performance in core chemistry and physics subjects, and coursework in mathematical methods.
• Research experience: prior laboratory or computational research, ideally with evidence of responsibility for project work, presentations or publications.
• Application materials: academic transcripts, a research statement outlining interests in optics/quantum chemistry, a curriculum vitae, and letters of recommendation from referees familiar with the applicant’s research potential.
• Additional considerations: applicants whose first language is not English may need to show English proficiency; funding, fit with potential supervisors, and availability of research facilities are also important factors in admissions decisions.

Career prospects

Graduates of a PhD in Chemistry with expertise in optics and quantum chemistry are prepared for a range of careers in academia, industry and government research. Typical paths include postdoctoral research and faculty positions in universities, scientific staff roles in national laboratories, and R&D positions in companies working on photonics, quantum information, optical materials, spectroscopy instrumentation and chemical modelling software.

• Industrial research and development in photonics, semiconductors, photovoltaics and optoelectronics.
• Roles in quantum technology companies focusing on quantum sensing, communication or computation.
• Analytical and instrumentation development for spectroscopy, imaging and diagnostic instruments.
• Research scientist positions in national laboratories and government research agencies.
• Technical leadership, science policy, technical consulting, and roles in scientific publishing or intellectual property.

Why study at University of San Diego

The University of San Diego offers a supportive, research-active environment with close faculty mentorship and small cohort sizes that enable personalised training. Chemistry PhD students benefit from access to modern optical and spectroscopic instrumentation, computational facilities, and collaboration opportunities with nearby research institutions and the region’s strong cluster of optics, photonics and quantum technology companies.

Faculty in the chemistry department pursue interdisciplinary research spanning physical chemistry, materials and photonics, providing a breadth of potential supervisory expertise. The university emphasises professional development, teaching experience and preparation for diverse scientific careers, while its location in San Diego facilitates industry partnerships, internships and networking in the Southern California research ecosystem.