Colorado State University

What you'll study

The PhD combines advanced coursework with an extended original research project supervised by faculty in physical chemistry, chemical physics and related laboratories. Core topics include quantum mechanics for chemists, electronic structure theory, molecular spectroscopy, nonlinear and ultrafast optics, light–matter interaction, and quantum dynamics. Students typically complete a mix of required and elective seminars and classes in areas such as:

• Advanced quantum chemistry and many‑body methods
• Time‑dependent quantum dynamics and nonadiabatic processes
• Molecular and condensed‑phase spectroscopy (IR, Raman, electronic)
• Nonlinear optics and ultrafast laser techniques
• Quantum information concepts relevant to chemical systems
• Computational chemistry and high‑performance computing for excited states

Program structure emphasises early rotation or laboratory placements to identify a dissertation advisor, followed by in‑depth research, publication of results in peer‑reviewed journals, and defence of a doctoral dissertation. Students can expect training in experimental methods (laser systems, detection electronics, cryogenic and vacuum techniques) or in theoretical/computational methods (electronic structure codes, quantum dynamics algorithms), depending on their advisor and research project. Professional development activities such as teaching assistantships, grant writing, and seminar presentation are integral to doctoral training.

Entry requirements

Applicants should hold a relevant undergraduate or master’s degree in chemistry, physics, chemical engineering or a closely related discipline, with strong preparation in quantum mechanics, physical chemistry and mathematics. A completed master’s degree in chemistry or a related field is often preferred but well‑qualified candidates with a strong bachelor’s background and significant research experience are considered.

• Academic transcripts demonstrating a strong record in advanced chemistry and physics coursework.
• A statement of research interests that aligns with faculty working in optics, spectroscopy or quantum chemistry.
• Curriculum vitae listing research experience, publications (if any), and technical skills.
• Letters of recommendation from academic or research supervisors who can speak to research potential.
• Proof of English proficiency for international applicants where required by university policy.

Standardised test requirements (such as the GRE) vary; applicants should consult the department for current expectations. Admission decisions emphasise research fit and potential as reflected in prior research experience, recommendations and the research statement.

Career prospects

Graduates from this programme pursue careers across academia, national laboratories and industry. Typical roles include university faculty and postdoctoral researchers, research scientists at national labs, and R&D positions in companies working on photonics, quantum technologies, chemical sensing, imaging and materials for optics. Other career paths include technical leadership in quantum computing firms, measurement and instrumentation companies, and roles in scientific software and computational modelling.

Training in both experimental optics and theoretical quantum chemistry provides flexibility: alumni are sought for positions that require expertise in ultrafast spectroscopy, quantum device materials, molecular quantum information processing, and computational prediction of excited‑state phenomena. Teaching and science communication roles are also common outcomes for graduates who combine their research with instructional experience.

Why study at Colorado State University

Colorado State University’s Department of Chemistry offers a collaborative environment with faculty active in spectroscopy, laser science, and theoretical chemical physics. The university’s research infrastructure provides access to advanced laser laboratories, state‑of‑the‑art instrumentation and high‑performance computing resources, supporting both experimental and computational projects.

Students benefit from interdisciplinary connections across physics, electrical engineering and materials science on campus, which foster projects at the intersection of optics and quantum chemistry. Doctoral candidates receive mentorship from faculty with established research programmes, opportunities for external collaborations, and professional development through teaching and grant activity—preparing graduates for a range of research and leadership careers in the evolving fields of photonics and quantum science.