Semrock VersaChrome Tunable Bandpass Filters

Download the PDF version   1. Introduction Thin-film filters are the ideal solution for wavelength selection in most optical systems due to exceptionally high transmission (close to 100%), very steep spectral edges, and blocking of optical density 6 or higher over wide spectral regions for maximum noise suppression. However, until now thin-film filters have been considered…

Super-resolution Microscopy

Download the PDF version   1. Introduction Fluorescence microscopy has revolutionized the study of biological samples. Ever since the invention of fluorescence microscopy towards the beginning of the 20th century, significant technological advances have enabled elucidation of biological phenomenon at cellular, subcellular and even at molecular levels. However, the latest incarnation of the modern fluorescence microscope…