Multispectral Detector Based on Array of Carbon-Nanotube Quantum Wells
Final progress rept. Apr 2006-Mar 2009
NORTHWESTERN UNIV EVANSTON IL DEPT OF PHYSICS AND ASTRONOMY
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The research efforts focused on comb arrays of carbon nanotube quantum wells exposed to external weak THz fields. Each of the individual well in the array had been independently controlled by a dc source-drain voltage and covered a narrow spectral sector within the THz domain diapason. The comb array consisted of two different types of carbon nanotube junctions semiconducting tube junctions and the metallic tube junctions in the Tomonaga-Luttinger liquid TLL state. In this way one extends the analyzed spectral diapason from 0.5-7.5 THz covered by the semiconducting comb to 7.5-50 THz covered by the metallic carbon nanotube comb. Besides our approach exploits intrinsic phase-coherent properties of carbon nanotubes which allows improving of the frequency resolution, and reducing of the intrinsic noises considerably.
- Refractory Fibers
- Quantum Theory and Relativity