The power broadening of a coupling laser can be converted into two-photon detuning by electromagnetically induced transparency (EIT). resulting in a residual Doppler effect. The residual Doppler effect in a ladder-type EIT in a room-temperature atom ensemble is further amplified through a wavelength mismatch effect between the probe and coupling laser beams. which reduces the atomic c... https://jalyttlers.shop/product-category/handy-pouches/