University of Delaware

What you'll study

The programme combines advanced coursework, intensive research and professional development to build expertise in optical methods and quantum chemical theory. Core themes include ultrafast and nonlinear spectroscopy, quantum dynamics, electronic structure theory, light–matter coupling, and photonic materials. Students typically follow a personalised path that balances experimental and computational training depending on their research group.

Typical elements of the programme include:

• Advanced coursework — classes in quantum chemistry, molecular spectroscopy, statistical mechanics, and advanced physical chemistry or chemical physics.
• Specialist topics — seminars and electives covering ultrafast optics, nonlinear optics, quantum optics, excited-state dynamics, many-body methods, time-dependent density functional theory (TD-DFT) and wavefunction-based approaches.
• Laboratory and computational methods — hands-on training with ultrafast laser systems, transient absorption and fluorescence upconversion, single-molecule and single-photon techniques where applicable, alongside high-performance computing for ab initio and dynamics simulations.
• Research rotations and thesis research — early-stage rotations (where offered) allow exposure to different experimental and theoretical approaches, leading to selection of a primary research adviser and a programme of original dissertation work.
• Graduate seminars and teaching — participation in departmental seminars, journal clubs and teaching duties to develop communication and mentorship skills.
• Examinations and milestones — qualifying or candidacy examinations, proposal defence, and final doctoral dissertation and oral defence are milestones that demonstrate mastery and independence in research.

Entry requirements

Applicants are expected to hold a strong undergraduate degree in chemistry, physics, chemical engineering or a closely related discipline; many successful candidates also hold a relevant master's degree. A solid foundation in quantum mechanics, physical chemistry and mathematical methods is essential.

Typical application materials include:

• Academic transcripts showing coursework in relevant areas.
• A statement of research interests describing alignment with faculty expertise in optics, spectroscopy or quantum chemical theory.
• Letters of recommendation from academic or research supervisors who can speak to research potential.
• A curriculum vitae outlining research experience and technical skills.
• Proof of English language proficiency for applicants whose first language is not English (e.g. recognised tests), where required.

The department evaluates applications holistically, giving weight to prior research experience, fit with faculty research, and the potential to complete an independent research programme. Prospective students are encouraged to contact potential faculty advisers before applying to discuss research alignment.

Career prospects

Graduates of this programme are prepared for diverse career paths that value deep expertise in light–matter interactions and quantum-level chemical understanding. Common directions include:

• Academic research and teaching at universities and colleges.
• Research scientist roles in national laboratories and government research organisations working on quantum information science, photonics, or spectroscopy.
• Industrial positions in companies developing quantum hardware and software, photonic devices, optical instrumentation, and advanced materials for energy and sensing applications.
• Computational chemistry and modelling roles in pharmaceuticals, materials design, and chemical informatics where electronic structure and excited-state processes are critical.
• Technology transfer, intellectual property, science policy and consultancy roles that draw on technical depth and communication skills acquired during the PhD.

Why study at University of Delaware

The University of Delaware offers an interdisciplinary environment that bridges chemistry, physics and engineering, providing rich opportunities for research at the optics–quantum chemistry interface. Faculty in the Department of Chemistry and Biochemistry work collaboratively with researchers across campus, enabling access to complementary expertise and facilities.

Students benefit from well‑equipped laboratories and computational resources for both experimental optics and advanced quantum chemistry simulations, a vibrant graduate community with regular seminars and colloquia, and mentoring aimed at developing independent researchers. The programme emphasises both foundational theory and practical laboratory or computational skills, preparing graduates for leadership in research, industry and beyond.