AI Article Synopsis
- Cadmium telluride (CdTe) is highlighted as an effective mid-infrared (MIR) material due to its high refractive index (~2.68 at 4.5 μm) and broad transparency range (1 to 25 μm).
- Microwires (MWs) made from CdTe, with diameters of a few to around ten micrometers, were created through a thermal evaporation process.
- The study demonstrates CdTe MWs' impressive capability to guide MIR light with low waveguiding losses (1.3 to 13 dB/cm) and suggests their potential use in MIR microphotonics or circuits.
Article Abstract
Cadmium telluride (CdTe) has been proven to be an attractive mid-infrared (MIR) material with a large refractive index (~2.68 at 4.5 μm) and broadband transparency (~1 to 25 μm). CdTe microwires (MWs) with diameters from a few to about ten micrometers were fabricated by a thermal evaporation process. MIR light was coupled into and guided through individual MWs. Excellent optical waveguiding properties of these MWs are experimentally obtained within MIR spectral range (up to 8.6 μm), with waveguiding losses from 1.3 to 13 dB/cm. Our results show that CdTe MWs can be used as wavelength or subwavelength-width waveguides for MIR microphotonics or circuits.
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| http://dx.doi.org/10.1364/OE.26.010944 | DOI Listing |
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