In TIRF microscopy, fluorescent molecules are in a sample in an aqueous environment that is near a solid with a high refractive index, usually a glass coverslip. At what is called the critical angle, ...
Total reflection X-ray fluorescence (TXRF) is an advanced spectroscopic method for multi-element detection at trace and ultra-trace levels. By directing a monochromatic X-ray beam at a sample ...
Bound states in the continuum (BICs) are a special class of resonant states. Although they have the same momentum and energy as the propagating modes in free space, yet they are not coupled to the ...