New research from Portland State University focused on identifying signs of life—biosignatures—in extreme environments here ...

We study and develop optical microscopes that help biologists and engineers address ... and quantifying the optical path length distributions of transparent objects. To explore these topics, we ...

Our quantitative approach in differential interference contrast microscopy is an example that explores the ... used to combine the two phase differential images into a single optical path distance map ...

Optical microscopes depend on light, of course, but they are also limited by that same light. Typically, anything under 200 nanometers just blurs together because of the wavelength of the light ...

Fluorescence microscopy is not always effective for ... without the need to move the sample. The optical path has also been designed to enable dual-<0x000A>color luminescence as well as ...

Late 1600s – Dutch scientist Antonie van Leeuwenhoek constructed a microscope with a single spherical lens. It magnified up to ×275. 1800s - the optical quality of lenses increased and the ...

As [Zachary Tong] points out, confocal scanning microscopy uses a clever optical setup to collect light from a single, well-defined point within a sample; rather than getting an image of all the ...