Millimeter-wave narrow-gap uncooled hot-carrier detectors for active imaging

Сизов, Ф. Ф.; Zabudsky, V.; Голенков, А. Г.; Shevchik-Shekera, A.V.

doi:10.1117/1.oe.52.3.033203

Cited by 9 publications

(2 citation statements)

References 23 publications

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“…To estimate quality of the lenses, the relative power distribution from sources was mapped by HgCdTe or pyroelectric detectors [10] through the motorized threecoordinate stages displacement (Fig. 1).…”

Section: Testing the Thz Lensesmentioning

confidence: 99%

Designing and manufacturing aspherical polystyrene lenses for the terahertz region

Shevchik-Shekera¹

2018

Semicond. Phys. Quantum Electron. Optoelectron.

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We report on the development of lenses for terahertz vision systems from their design up to manufacturing. Fused deposition modeling was used for assisting the 3D printing manufacturing process. HIP (High Impact Polystyrene) used for printing has high transmittance in the terahertz region and low deformation in the manufacturing process. The comparative analysis of experimental parameters data and the designed ones showed good agreement for the aspherical lenses manufactured. Application of the lenses manufactured to get imaging of some objects at 140 GHz radiation with 32 elements linear detector array has been demonstrated.

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Section: Testing the Thz Lensesmentioning

confidence: 99%

Designing and manufacturing aspherical polystyrene lenses for the terahertz region

Shevchik-Shekera¹

2018

Semicond. Phys. Quantum Electron. Optoelectron.

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show abstract

“…In the sub-THz range of radiation frequency 𝜈 ≈ ≈ 140 GHz in MCT detectors under study, the noise equivalent power was NEP ≈ 10 −9 W/Hz 1/2 , quickly going down according to the dependence indicated above. Thus, these single uncooled direct detection detectors with a time response about the lifetime (𝜏 ∼ 5 × 10 −8 s) can be used only for the active imaging that was successfully demonstrated [16] in a sub-THz imaging system at the radiation frequency 𝜈 ≈ 150 GHz in a system with two-coordinate mechanical scanning and hyperbolic lenses, which allowed one to obtain diffraction-limited spots.…”

Section: 𝜕𝑇mentioning

confidence: 99%