Notes

Browse notes by subject. Categories are intentionally broad so the archive can grow without reorganizing existing URLs.

General Physics

Fundamental ideas, derivations, and physical intuition across classical and modern physics.

Topological phases, protected boundary states, band structures, and related models.

Scattering, Floquet photonics, complex media, radiation forces, and wave engineering.

Parallel algorithms, numerical implementation, performance analysis, and scientific software.

Experimental methods, instrumentation, measurement workflows, and laboratory observations.

Short research logs, reading notes, practical lessons, and reflections from daily work.

Oct 27, 2026

A continuously-updated learning note on FETs and analog electronics.

Oct 25, 2026

How can you work overtime on weekends without coffee!

Oct 21, 2026

Just for fun, don't take them too seriously.

Oct 21, 2026

本文简述了Poincaré-Dulac变换及其标准型的相关内容，持续更新中...

Oct 12, 2026

A playful, page-by-page introduction to waves, bands, topology, and protected edge states.