Optical reflectionless potentials for broadband, omnidirectional antireflection | Zendy

Litty V. Thekkekara | Zendy; Venu Gopal Achanta | Zendy; Subhasish Dutta Gupta | Zendy

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Optical reflectionless potentials for broadband, omnidirectional antireflection

Author(s) -

Litty V. Thekkekara,

Venu Gopal Achanta,

Subhasish Dutta Gupta

Publication year - 2014

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.017382

Subject(s) - optics , broadband , omnidirectional antenna , reflection (computer programming) , context (archaeology) , materials science , realization (probability) , scattering , wavelength , angle of incidence (optics) , transmission (telecommunications) , reflection coefficient , refractive index , optoelectronics , physics , telecommunications , antenna (radio) , computer science , programming language , paleontology , statistics , mathematics , biology

Reflectionless potentials (RPs) represent a class of potentials that offer total transmission in the context of one dimensional scattering. An optical realization of RP can exhibit a truly broadband omni-directional antireflection. We report our experimental observations confirming the reflectionless behavior. Stratified media conforming to RP's are designed and fabricated using Al(2)O(3) and TiO(2) heterolayers. They showed < 0.5% reflection over the broad wavelength range of 350 nm to 2500 nm for angles of incidence 0 - 50 degrees. These RPs can be designed on substrates and are thus interesting for optical instrumentation as broadband, omni-directional antireflection coatings.

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