Imaging Below 100 nm — without Fluorescence
Saturated transient absorption microscopy (STAM) opens a new door into the nanoscopic world of biomedical and nanomaterials research.
Rich Whitworth |
The diffraction limit for non-fluorescent species – the fundamental limit of optical imaging resolution – has been breached. Researchers at Purdue University, Lafayette, Indiana, imaged graphite nanoplatelets about 100 nm wide (see image) (1). Conventional optical microscopes cannot resolve objects smaller than around 300 nm.
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