Far-infrared detection with Hg1-xCdxTe

M. F. Kimmitt, G. C. Lopez, J. C. Giles, M. Takai, H. P. Röser, B T McGuckin, A. Black

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)


    We report detection in liquid He cooled n-Hg1-xCdxCdxTe at wavelengths between 140 and 1200 µm. With the mole fraction, x, of Cd <0.4m the alloy behaves as an electron bolometer with similar detectivity, but much improved bandwidth, compared with n-InSb. With x > 0.48 the detection process is extrinsic photoconductivity with an energy gap of a few meV. Lattice absorption severely limits detection in the wavelength range 220-340 µm. © 1985.

    Original languageEnglish
    Pages (from-to)767-778
    Number of pages12
    JournalInfrared Physics
    Issue number6
    Publication statusPublished - Nov 1985


    Dive into the research topics of 'Far-infrared detection with Hg1-xCdxTe'. Together they form a unique fingerprint.

    Cite this