% For normal incidence (θ = 0): k_x_inc = k_y_inc = 0, so: % (m^2 + n^2) < (n_med * period / λ)^2 % Cutoff wavelength for order (m, n) in medium n_med: % λ_cutoff(m,n) = period * n_med / sqrt(m^2 + ...

Controlling light at the micro- and nanoscale opens up opportunities for a better understanding of the world and the development of technology. As modern electronics approaches the limits of its ...

In a quiet office tucked within Stanford’s biomedical research campus, Stanford Cancer Institute member James Zou, PhD, associate professor of biomedical data science, is leading a revolution that may ...

First experimental observation of matter-wave diffraction in a short-lived electron-positron atom using a graphene-based diffraction grating. (Nanowerk News) One of the discoveries that fundamentally ...

Polarization imaging has the powerful ability to detect unique features invisible to human eyes, which is challenging for conventional intensity imaging systems. Metasurface emerges as a ...

A new virtual reality lab at the University of Dayton will help students preparing for health professions study the human body in 3D and learn skills they'll use in the field. The Dave and Norma ...

Optical dispersion occurs when the refractive index of a material changes with the wavelength of incoming light. This variation causes different colors to move at different speeds in transparent media ...

Diffraction of atoms from surfaces provides detailed insights into structures, interactions, and dynamical processes. However, the method is currently limited to measurements in reflection—diffraction ...

There may be a new artificial intelligence-driven tool to turbocharge scientific discovery: virtual labs. Modeled after a well-established Stanford School of Medicine research group, the virtual lab ...

Article subjects are automatically applied from the ACS Subject Taxonomy and describe the scientific concepts and themes of the article. Ultrafast spectroscopy has made it possible to observe a wide ...