1. [Untitled]
- Author
-
Maobin Yi, Yunlong Liu, Chao Zhao, Zhifa Wu, Zhanguo Chen, and Gang Jia
- Subjects
Radiation ,Materials science ,Laser diode ,business.industry ,Condensed Matter Physics ,Microstrip ,law.invention ,Numerical aperture ,Wavelength ,Optics ,law ,Solid immersion lens ,Electrical and Electronic Engineering ,business ,Instrumentation ,Sensitivity (electronics) ,Beam (structure) ,Voltage - Abstract
In this paper, all electro-optic solid immersion lens (EOSIL) is introduced, which is made of GaAs. A reflecting external electro-optic measuring system based on the EOSIL is built. With a hemispherical GaAs EOSIL used as the external probe, 0.7 µm spot size is obtained when the wavelength of the probing beam from a laser diode is 1.3 µm and a microscope objective with 0.3 numerical aperture is used. The principle of the measuring system is analyzed by Jones matrix. By using the system, the electrical signals propagating on a microstrip transmission line are successfully measured. The voltage sensitivity about 5 mV/\(\sqrt {Hz} \) is measured when 10 kHz sinusoidal electric signal is applied on the microstrip line.
- Published
- 2001