title: Mid-infrared doping tunable transmission through subwavelength metal hole arrays on InSb.
abstract: Doping-tunable mid-infrared extraordinary transmission is demonstrated from a periodic metal hole array patterned on n-InSb. The polarization-dependent transmission was measured at room temperature and 77 K. In addition, the extraordinary transmission was measured for incident angles from 0 degrees to 35 degrees in 5 degrees steps. A fundamental resonance shift of approximately 123 cm-1 (1.4 microm) is observed by varying the doping from 1 x 10(16) to 2 x 10(18) cm(-3). The calculated transmission resonances were in good agreement with the experimental results. This suggests that InSb semiconductor-based plasmonic structures may be suitable for a variety of tunable mid-infrared device applications.
authors.affiliation: Sandia National Laboratories, Albuquerque, NM 87185, USA. bspassm@sandia.gov
authors.forename: B S
authors.initials: BS
authors.lastname: Passmore
authors.forename: D G
authors.initials: DG
authors.lastname: Allen
authors.forename: S R
authors.initials: SR
authors.lastname: Vangala
authors.forename: W D
authors.initials: WD
authors.lastname: Goodhue
authors.forename: D
authors.initials: D
authors.lastname: Wasserman
authors.forename: E A
authors.initials: EA
authors.lastname: Shaner
mesh_terms: D000965:Antimony / Q000737:chemistry*; D007204:Indium / Q000737:chemistry*; D007259:Infrared Rays; D008027:Light; D008670:Metals / Q000737:chemistry; D016062:Porosity; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D008670:Metals; D007204:Indium; D000965:Antimony