In contrast, a two-photon absorption process occurs when two photons are absorbed simultaneously at the same spatial location. As two-photon processes are nonlinear and require high-optical ...

Smarter, Faster, and More Efficient Signal Boosting A new optical amplifier is changing the game. Unlike conventional ...

Scientists at EPFL and IBM Research have developed a compact optical amplifier based on a photonic chip that vastly ...

Photon upconversion involves a series of non-linear optical processes where the sequential absorption of two or more photons leads to the emission of a single photon with energy greater than the sum ...

A novel photonic chip-based traveling-wave parametric amplifier offers ultra-broadband signal amplification, enhancing data ...

This energy is released as a photon. The energy of the photon can be worked out using the equation If an electron moves from level \(E_{2}\) to \(E_{1}\) the energy of the photon can be worked out ...

allowing multi-photon absorption. Optical poling of a glass material: By irradiating two laser beams the randomness of a dye in a glass matrix could be changed to an ordered direction. By this ...

The average laser power used ranges from 3mW for small knots to 13 mW for larger ones, as measured just before the objective (note that the power in the sample is further reduced by about a factor of ...