Franz-Keldysh effect


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Franz-Keldysh effect

[¦fränts ′kel·dəsh i‚fekt]
(optics)
A shift to longer wavelength in the spectrum transmitted by a semiconductor when a strong electric field is applied.
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References in periodicals archive ?
Garcia, "Tunneling assisted two-photon absorption: the nonlinear Franz-Keldysh effect," Physical Review B, vol.
Optical limiting using the two-photon absorption electrical modulation effect in HgCdTe Photodiode
"There we use the Franz-Keldysh effect to get a larger [change in refractive index] than before."
But using the Franz-Keldysh effect requires operating with a grating that has twice the frequency of the linear electro-optic effect near the bandgap.
Physical effect helps get lasers to work together

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