Two-photon emission is a relatively weak emission process, about five orders of magnitude weaker than the usual single-photon emission that occurs in semiconductor lasers or LEDs. So we had to use ...

A study led by Dr. Peter Canoll's lab, in collaboration with researchers at Columbia University Irving Medical Center, ...

The introduction of green fluorescent protein (GFP) and two-photon microscopy has allowed systematic imaging studies of protein localization in living cells and of the structure and function of ...

A Columbia-led study uncovers how gliomas cause seizures and cognitive impairments by disrupting brain activity. Using ...

is based on an average of the inherent fluorescence in the brains of mice imaged using serial two-photon tomography. A virtual section of the 3D average is shown on the left. Delineations showing ...

PCD-CT improves CAD diagnosis, reduces unnecessary procedures, and enhances clinical outcomes over traditional imaging.

and single photon emission tomography (SPECT) are a few millimetres. Diagnostic imaging can be divided into two broad categories: those methods that define very precisely anatomical details and those ...