Abstract
We review 2-D spatiotemporal (2D-ST) terahertz (THz) imaging based on noncollinear free-space electrooptic sampling and its application to THz reflection tomography, THz spectral imaging, and THz spectral computed tomography (CT). 2D-ST THz imaging enables high-speed image acquisition at much higher rates than previously. Two-dimensional THz reflection tomography was effective for visualizing the internal structure of a moving paint film. A THz color scanner demonstrated the potential of rapid nondestructive inspection of moving pharmaceutical tablets. A THz spectral CT system using real-time line projection of a THz beam was effectively applied to a continuously rotating object. 2D-ST THz imaging enables functional THz imaging of moving objects in various practical applications.
| Original language | English |
|---|---|
| Article number | 8600110 |
| Pages (from-to) | N/A |
| Number of pages | 10 |
| Journal | IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS |
| Volume | 19 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2013 |
Keywords
- computerised tomography
- drugs
- electro-optical effects
- microwave photonics
- nondestructive testing
- optical tomography
- paints
- spatiotemporal phenomena
- terahertz spectroscopy
- terahertz wave imaging
- THz beam
- THz color scanner
- THz reflection tomography
- THz spectral CT system
- THz spectral computed tomography
- THz spectral imaging
- functional terahertz imaging
- high-speed image acquisition
- internal structure visualization
- moving object
- moving paint film
- noncollinear free-space electrooptic sampling
- pharmaceutical tablets
- rapid nondestructive inspection
- real-time line projection
- real-time two-dimensional spatiotemporal terahertz imaging
- Cameras
- Laser beams
- Lenses
- Probes
- Reflection
- Tomography
- Electrooptic effects
- imaging
- spectroscopy
- terahertz radiation