Tetrahertz near-field electro-optic probe based on a microresonator
27 February 2006
Electro-optic detection of tetrahertz (THz) pulses typically requires a long nonlinear crystal to accumulate a measurable electro-optic phase shift. The large crystal size prevents application of the method in high-resolution THz near-field microscopy. An electro-optic microresonator that enhances the electro-optic phase shift in a small volume is proposed as a near-field probe for THz microscopy. Frequency response of the microresonator probe is evaluated for different resonator designs. (c) 2006 American Institute of Physics.