physics, two-photon absorption (TPA or 2PA), also called two-photon excitation or non-linear absorption, is the simultaneous absorption of two photons of identical...

directed at providing chromophores with high two-photon absorption cross-sections. Writing by two-photon absorption can be achieved by focusing the writing...

multiphoton absorption, the background signal is strongly suppressed. Both effects lead to an increased penetration depth for this technique. Two-photon excitation...

Mayer to this area, the unit for the two-photon absorption cross section is named the "GM". One GM is 10−50 cm4⋅s⋅photon−1. In the context of ozone shielding...

non-degenerate two-photon absorption (ND-TPA or ND-2PA) or two-color two-photon excitation is a type of two-photon absorption (TPA) where two photons with different...

classic method of nonlinear absorption used by microscopists is conventional two-photon fluorescence, in which two photons from a single source interact...

phenomena including the Kerr effect, the Raman effect, two-photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity...

techniques have since been developed, including the one-photon LIF technique and the two-photon absorption laser-induced fluorescence (TALIF). TALIF is a modification...

Photon upconversion (UC) is a process in which the sequential absorption of two or more photons leads to the emission of light at shorter wavelength than...

wavelength. The main difference is the avoidance of photomasks. Instead, two-photon absorption is utilized to induce a change in the solubility of the resist for...

Goeppert Mayer wrote her doctoral thesis on the theory of possible two-photon absorption by atoms. At the time, the chances of experimentally verifying her...

two-photon absorption (TPA) cross-sections obtained using left circular polarized light and right circular polarized light (see Figure 1). Typically, two-photon...

suggesting direct absorption by the L-opsin, there are also reports that pulsed NIR lasers can evoke green, which suggests two-photon absorption may be enabling...

(second-harmonic generation). In addition, in such crystals, one-photon absorption (OPA) and two-photon absorption (TPA) processes are mutually exclusive, i.e., they...

constant for absorption. For the reverse process, there are two possibilities: spontaneous emission of a photon, or the emission of a photon initiated by...

ISBN 978-9814295741. Garcia, H.; Kalyanaraman, R. (2006). "Phonon-assisted two-photon absorption in the presence of a dc-field: the nonlinear Franz–Keldysh effect...

of second-harmonic generation (SHG). Other techniques based on two-photon absorption may also be used in autocorrelation measurements, as well as higher-order...

Two-photon photovoltaic effect (TPP effect) is an energy collection method based on two-photon absorption (TPA). The TPP effect can be thought of as the...

to measure the non-linear absorption coefficient Δα. The main cause of non-linear absorption is due to two-photon absorption. When measuring the nonlinear...

include the signal resulting from two-photon absorption and stimulated Raman amplification. Two-photon absorption occurs in samples that are generally...

of Chromosome 2 (human) 2p, an atomic orbital for electrons Two-photon absorption Two-photon excitation microscopy Airphil Express, a Philippines airline...

Transpalatal arch, an orthodontic device Tris(2-pyridylmethyl)amine Two-photon absorption Televisão Pública de Angola, the state-owned TV station in Angola...

generally, various types of photochemistry, and nuclear processes. Two-photon absorption Virtual particle Feshbach resonance Shape resonance "A glossary...

longer holds. The first nonlinear optical effect to be predicted was two-photon absorption, by Maria Goeppert Mayer for her PhD in 1931, but it remained an...

allowed two photon absorption. Antihydrogen atoms excited to the 2s state can then evolve in one of several ways: They can emit two photons and return...

second-order nonlinearity, as well as optical transparency and low two-photon absorption. This makes silicon carbide viable to be an alternate platform for...

source needed] Two-photon absorption Colin S, Contesse E, Boudec PL, Stephan G, Sanchez F (1996). "Evidence of a saturable-absorption effect in heavily...

understanding fluorescence (these rules do not necessarily apply to two-photon absorption). Kasha's rule states that the luminesce (fluorescence or phosphorescence)...

absorption spectroscopy, two counter-propagating, overlapped laser beams are sent through a sample of atomic gas. One of the beams stimulates photon emission...

molar absorptivity. They are quantitatively related by (mass attenuation coefficient) × (molar mass) = (molar absorptivity). Tables of photon mass attenuation...