Photonics 2021, 8(5), 151; https://doi.org/10.3390/photonics8050151

Kosuke Okada, Quentin Cassar, Hironaru Murakami, Gaëtan MacGrogan, Jean-Paul Guillet, Patrick Mounaix, Masayoshi Tonouchi, and Kazunori Serita,
" Label-Free Observation of Micrometric Inhomogeneity of Human Breast Cancer Cell Density Using Terahertz Near-Field Microscopy"
Photonics 2021, 8(5), 151.