Difan Wen

About Me

PhD Candidate @ UC Berkeley

I am a PhD Candidate in the Applied Science and Technology (AS&T) Program within the Department of EECS at UC Berkeley, conducting research under the supervision of Professor Kanté. My current research lies at the intersection of Quantum Optics, Silicon Photonics, and Topological Photonics on engineering scalable single-photon sources for quantum information processing. Before my doctoral study, I focused on wave-optics in the EUV and X-ray regimes for spectroscopy.
  • Residency:
    Berkeley, CA, U.S.A
  • Email:
    difanwen@berkeley.edu
  •  

Resume

Education

Aug 2022 - Current

Applied Science and Technology (Ph.D.)

College of Engineering | UC Berkeley

Supervisor: Professor Boubacar Kanté

Aug 2018 - May 2022

Engineering Physics (B.S.)

College of Engineering | UC Berkeley
Advisor: Professor David Attwood
Aug 2018 - May 2022

Electrical Engineering and Computer Sciences (B.S.)

College of Engineering | UC Berkeley
Advisor: Professor Eli Yablonovitch

Research Experience

Aug 2022 - Current

Graduate Student Researcher

Kanté Lab | UC Berkeley
Molecular Foundry | LBNL

Research focused on designing novel photonic devices and integrated single-photon sources 

May 2021 - Sep 2021

Student Research Intern

LCLS-II | SLAC National Laboratory

Designing and optimizing optical systems for TXI instrument to combine X-rays from two free-electron lasers into a single interaction point for X-ray Pump/Probe experiment

Teaching Assistant Experience

Jan 2026 - Current

EE 290 - Fundamentals of EUV Lithography

Taught by Professor Anthony Yen

Jan 2025 - May 2025

AST C210 - X-rays and EUV Radiation

Taught by Professor David Attwood

Jan 2024 - May 2024

EE 117 - Electromagnetic Fields and Waves

Taught by Professor Boubacar Kanté

Jan 2022 - May 2022

AST C210 - X-rays and EUV Radiation

Taught by Professor David Attwood

Jan 2021 - May 2021

AST C210 - X-rays and EUV Radiation

Taught by Professor David Attwood

Design & Software

  • Silicon Photonics & PICs:
    • Ansys Lumerical (FDTD, MODE, INTERCONNECT)
    • Tidy3D
    • EMopt (Customized EM Solver for inverse-design)
    • KLayout (GDSII)
    • Customized PDK for Photonic Devices Layout with Python
    • Tape-out experience with Foundry PDKs (AIM Photonics, SiEPIC)
  • Optical Design & Ray Tracing:
    • Zemax OpticStudio
    • Synopsys CODE V
  • Multi-Physics Simulation:
    • COMSOL Multiphysics
    • Ansys Lumerical Multiphysics
  • Keysight RF & Quantum:
    • PathWave ADS
    • EMPro & Momentum

Semiconductor Processing

  • Patterning:
    • Photolithography
    • Focused-ion Beam Lithography
  • Etching:
    • Plasma Reactive Ion Etching
    • Focused-ion Beam Milling
  • Thin Film Deposition:
    • PECVD
    • E-beam Evaporation
    • Sputtering
  • Metrology:
    • Scanning Electron Microscopy
    • Focused-ion Beam Microscopy
    • Transmission Electron Microscopy

Optical Engineering & Metrology

  • PIC Testing:
    • Grating Coupler Alignment
    • Automated Chip-scale Device Characterization
  • Optical Characterization:
    • Hong-Ou-Mandel (HOM) Interferometry
    • Photoluminescence (PL) Spectroscopy
    • Confocal Microscopy
  • Instrumentation Control:
    • Python (PyVISA)
    • MATLAB Instrument Control Toolbox
    • Automated Optical Characterization

Service & Leadership

  • Graduate Assembly Delegate
    • Served on the Funding & Finance Committees to oversee budget allocations.
    • Advocated for graduate student interests in university-wide policy discussions.
  • AS&T Departmental Student Liaison
    • Organized community-building initiatives and social events.
  • Photobears (Optica Student Chapter)

Soft Skills

  • Autodidactic Fingerstyle Guitarist
  • Part-time Acoustic Guitar Instructor

Technical & Creative Proficiencies
Visual Design (Adobe Suite) Photography & Video Editing 3D Modeling (Autodesk 3DS Max, Autodesk Maya, Blender) Language Spoken: English, Mandarin Chinese

Certificates

Silicon Photonics Design, Fabrication and Data Analysis

Dec 2024

PIC 1: Fabless Design within the AIM Photonics Foundry

Jul 2025