Garzarella A, Qadri S B, Wieting Terence J, Wu Dong Ho, Hinton R J
Naval Research Laboratory, Washington, DC 20375, USA.
Opt Lett. 2007 Apr 15;32(8):964-6. doi: 10.1364/ol.32.000964.
The sensitivity of an electro-optic (EO) field sensor depends inversely on the dielectric constant of the nonlinear crystal. In EO sensors based on lithium niobate the effective value of this dielectric constant is affected by dielectric relaxation effects and is identified with its smaller, high-frequency component. Because of this effect, the EO modulation is significantly enhanced, thus improving the field strength sensitivity.
电光(EO)场传感器的灵敏度与非线性晶体的介电常数成反比。在基于铌酸锂的电光传感器中,该介电常数的有效值受介电弛豫效应影响,并与其较小的高频分量相关。由于这种效应,电光调制显著增强,从而提高了场强灵敏度。