pockels cell造句

• Longitudinal Pockels cells need transparent or ring electrodes.
• This is in contrast to Pockels cells, which can operate at much lower voltages.
• It typically contains one or two Pockels cells, and possibly additional optical elements such as polarizers.
• When this process is complete, a Pockels cell " switches " the light out of the cavity.
• Pulse trapping and dumping is done using a polarizer and a Pockels cell, which acts like a quarter wave-plate.
• For a Pockels cell, it is usually hundreds or even thousands of volts, so that a high-voltage amplifier is required.
• A Pockels cell can thus be seen as a voltage-controlled waveplate, and it can be used for modulating the polarization state.
• Instead of using relatively slow-moving mechanical shutter curtains, electro-optic devices such as Pockels cells can be employed as shutters.
• A transverse Pockels cell consists of two crystals in opposite orientation, which together give a zero-order wave plate when the voltage is turned off.
• When the pulse will achieve a high amplification, a second voltage can be applied to the Pockels cell in order to release the pulse from the resonator.
• If a voltage is applied, then a double pass through the Pockels cell will not change the polarization and the pulse will get trapped inside the cavity of the resonator.
• When a pulse with vertical polarization is reflected off the polarizer, after a double pass through the Pockels cell it will become horizontally polarized and will be transmitted by the polarizer.
• If no voltage is applied to the Pockels cell, a double pass through it will change the polarization of the pulse to vertical, so the pulse will be reflected off the polarizer and will exit the cavity.
• The term electro-optics came into earlier use and specifically encompasses nonlinear electrical-optical interactions applied, e . g ., as bulk crystal modulators such as the Pockels cell, but also includes advanced imaging sensors typically used for surveillance by civilian or government organizations.