Prof. Xi-Cheng Zhang
Professor & Director at Institute of Optics Univ of Rochester
SPIE Involvement:
Conference Chair | Editor | Author | Instructor
Publications (60)

Proceedings Article | 2 March 2020
Proc. SPIE. 11279, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII
KEYWORDS: Near infrared, Computational imaging, Detection and tracking algorithms, Modulation, Crystals, Spatial light modulators, Terahertz radiation, Reconstruction algorithms, Laser beam diagnostics, Near field optics

SPIE Journal Paper | 27 February 2020
AP Vol. 2 Issue 01
KEYWORDS: Terahertz radiation, Liquids, Water, Ionization, Pulsed laser operation, Plasma, Absorption, Refractive index, Laser beam propagation, Gases

Proceedings Article | 19 November 2019
Proc. SPIE. 11183, Advanced Laser Processing and Manufacturing III
KEYWORDS: Image processing, Nitrogen, Laser processing, Laser applications, Laser drilling, 3D modeling, CCD cameras, CCD image sensors, Acoustics, Optics manufacturing

Proceedings Article | 18 November 2019
Proc. SPIE. 11196, Infrared, Millimeter-Wave, and Terahertz Technologies VI
KEYWORDS: Terahertz radiation, Liquids

Proceedings Article | 18 November 2019
Proc. SPIE. 11196, Infrared, Millimeter-Wave, and Terahertz Technologies VI
KEYWORDS: Terahertz radiation, Liquids, Light, Absorption

Showing 5 of 60 publications
Proceedings Volume Editor (15)

Showing 5 of 15 publications
Conference Committee Involvement (20)
Infrared, Millimeter-Wave, and Terahertz Technologies VII
11 October 2020 | Beijing, China
International Conference on Optical Instruments and Technology 2019: IRMMW-THz Technologies and Applications
26 October 2019 | Beijing, China
Infrared, Millimeter-Wave, and Terahertz Technologies VI
21 October 2019 | Hangzhou, China
Infrared, Millimeter-Wave, and Terahertz Technologies V
12 October 2018 | Beijing, China
International Conference on Optical Instruments and Technology 2017: THz/Infrared Technologies and Applications
28 October 2017 | Beijing, China
Showing 5 of 20 Conference Committees
Course Instructor
SC547: Terahertz Wave Technology and Applications
A pulsed terahertz (THz) wave with a frequency range from 0.1 THz to 10 THz is called a "T-ray." T-rays occupy a large portion of the electromagnetic spectrum between the infrared and microwave bands. However, compared to the relatively well-developed science and technology in the microwave, optical, and x-ray frequencies for defense and commercial applications, basic research, new initiatives and advanced technology developments in the THz band are very limited and remain unexplored. However, just as one can use visible light to create a photograph, radio waves to transmit music and speech, microwave radiation (MRI) or X-rays to reveal broken bones, T-ray can be used to create images or communicate information. This course will provide the fundamentals of free-space THz optoelectronics. We will cover the basic concepts of generation, detection, propagation, and applications of the T-rays, and how the up-to-date research results apply to industry. The free-space T-ray optoelectronic detection system, which uses photoconductive antennas or electro-optic crystals, provides diffraction-limited spatial resolution, femtosecond temporal resolution, DC-THz spectral bandwidth and mV/cm field sensitivity. Examples of homeland security and defense related projects will be highlighted.
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