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  2. Transformation optics - Wikipedia

    en.wikipedia.org/wiki/Transformation_optics

    Transformation optics is the foundation for exploring a diverse set of theoretical, numerical, and experimental developments, involving the perspectives of the physics and engineering communities. The multi-disciplinary perspectives for inquiry and designing of materials develop understanding of their behaviors, properties, and potential ...

  3. Metamaterial cloaking - Wikipedia

    en.wikipedia.org/wiki/Metamaterial_cloaking

    Hence, with these two papers, transformation optics is born. [2] [9] [10] Transformation optics subscribes to the capability of bending light, or electromagnetic waves and energy, in any preferred or desired fashion, for a desired application. Maxwell's equations do not vary even though coordinates transform. Instead it is the values of the ...

  4. Theories of cloaking - Wikipedia

    en.wikipedia.org/wiki/Theories_of_cloaking

    The first electromagnetic cloaking device was produced in 2006, using gradient-index metamaterials.This has led to the burgeoning field of transformation optics (and now transformation acoustics), where the propagation of waves is precisely manipulated by controlling the behaviour of the material through which the light (sound) is travelling.

  5. Photonic metamaterial - Wikipedia

    en.wikipedia.org/wiki/Photonic_metamaterial

    Potential applications include cloaking and transformation optics. [10] Photonic crystals differ from PM in that the size and periodicity of their scattering elements are larger, on the order of the wavelength. Also, a photonic crystal is not homogeneous, so it is not possible to define values of ε (permittivity) or u (permeability). [11]

  6. Metamaterial absorber - Wikipedia

    en.wikipedia.org/wiki/Metamaterial_absorber

    Loss is noted in applications of negative refractive index (photonic metamaterials, antenna systems metamaterials) or transformation optics (metamaterial cloaking, celestial mechanics), but is typically undesired in these applications. [1] [13] Complex permittivity and permeability are derived from metamaterials using the effective medium approach.

  7. Optical transfer function - Wikipedia

    en.wikipedia.org/wiki/Optical_transfer_function

    The resolution of a digital imaging device is not only limited by the optics, but also by the number of pixels, more in particular by their separation distance. As explained by the Nyquist–Shannon sampling theorem , to match the optical resolution of the given example, the pixels of each color channel should be separated by 1 micrometer, half ...

  8. Foldy–Wouthuysen transformation - Wikipedia

    en.wikipedia.org/wiki/Foldy–Wouthuysen...

    With all these plus points, the powerful and ambiguity-free expansion, the Foldy–Wouthuysen Transformation is still little used in optics. The technique of the Foldy–Wouthuysen Transformation results in what is known as nontraditional prescriptions of Helmholtz optics [28] and Maxwell optics [29] respectively. The nontraditional approaches ...

  9. Gerchberg–Saxton algorithm - Wikipedia

    en.wikipedia.org/wiki/Gerchberg–Saxton_algorithm

    The Gerchberg-Saxton algorithm. FT is Fourier transform. The Gerchberg–Saxton (GS) algorithm is an iterative phase retrieval algorithm for retrieving the phase of a complex-valued wavefront from two intensity measurements acquired in two different planes. [1]