Coupling Optical Phonons to Free Space Photons: A Feasibility Study
Technical Report,15 Jul 2016,14 Apr 2017
University of Texas at Austin Austin United States
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The far-IR presents an interesting challenge for the development of an optical and optoelectronic infrastructure, as the III-V semiconductors that enable such extraordinary access to other portions of the EM spectrum are not well-suited for the far-IR, due to significant optical loss. These losses arise from the coupling of EM radiation to both free-carriers and phonons. While free-carrier loss can be controlled to an extent by limiting free-carrier density doping in the design and growth of semiconductor devicesmaterials, loss due to phonons is intrinsic to semiconductors in this wavelength range, and cannot be controlled in a similar fashion.
- Electrooptical and Optoelectronic Devices