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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In doing this, they achieve an energy transfer, but with a larger change in refractive index, due to the Franz-Keldysh effect.
Physical effect helps get lasers to work together

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