# wavelength

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## wavelength

[wāv´length]
the distance between the top of one wave and the identical phase of the succeeding one in the advance of waves of radiant energy.

## wave·length (Λ),

(wāv'length),
The distance from one point on a wave (frequently shaped like a sine curve) to the next point in the same phase; that is, from peak to peak or from trough to trough.

## wave·length

(λ) (wāv'length)
The distance from one point on a wave (frequently shaped like a sine curve) to the next point in the same phase; i.e., from peak to peak or from trough to trough.

## wavelength

the distance between two successive points at which the wave has the same phase. For example, visible light has a wavelength of between 400 nm (violet) to 750 nm (red).

## wavelength

Distance in the direction of propagation of a periodic wave between two successive points at the same position in the wave (e.g. the distance between two crests). Symbol: λ. Note 1: The wavelength in a medium is equal to the wavelength in vacuum divided by the refractive index of the medium. Unless otherwise stated, values of wavelength are generally those in air. The refractive index of standard air (15ºC, 101 325 N/m2) lies between 1.00027 and 1.00029 for visible radiations. Note 2: The reciprocal of the wavelength is called the wave number. Note 3: The wavelength is longer for red light than for blue light. Wavelength λ is equal to
λ = c/v
where c is the velocity of light and v is the frequency of light. (Fig. W1) See fluorescence; infrared; interferometer; light; phase; Bezold-Brücke phenomenon; electromagnetic spectrum; ultraviolet; wave theory.
Fig. W1 Wavelength of light in air and in a medium of refractive index n1 and n2, respectively (λ2 = λ1/n2)

## wave·length

(wāv'length)
The distance from one point on a wave (frequently shaped like a sine curve) to the next point in the same phase; i.e., from peak to peak or from trough to trough.
References in periodicals archive ?
It consists of two infinite thin plates connected with periodic subwavelength arrays of shunted piezoelectric patches on the inner side and the two parallel facesheets reinforced by an orthogonally rib-stiffened core which has two periodic uniform spacing of [l.sub.x] and [l.sub.y] in the x- and j-directions, respectively.
Hua, "The design and simulation of a metamaterial and subwavelength cavity-based antenna," Cross Strait Quad-regional Radio Science and Wireless Technology Conference (CSQRWC), Vol.
The obtained lattice constant is not quite in subwavelength region.
Under certain conditions, electromagnetic radiation has been observed to pass through subwavelength apertures (145-147).
We consider the subwavelength sized holes into metal films as cylindrical resonator with partly filled homogeneous medium [11].
Professor Peng Jiang's group at the University of Florida has developed a spin-coating technique that creates subwavelength structures on silicon substrates.
The chapters discuss negative refraction, negative refractive index and subwavelength imaging, magneto-optics and the Kerr effect with ferromagnetic materials, symmetry properties of nonlinear magneto-optical effects, optical magnetism in plasmonic metamaterials, chiral photonic media, optical vortices, photonic crystals, wave interference and modes in random media, chaotic behaviors of random lasers, lasing in random media, feedback in random lasers, optical metamaterials with zero loss and plasmonic nanolasers, resonance energy transfer, optics of nanostructured materials from first principles, organic photonic materials, charge transport and optical effects in disordered organic semiconductors, holography and its applications, and slow and fast light.
The resulting large subwavelength gap has necessitated very aggressive RET, which is challenging to combine with a conventional rule-based design environment.
Our development of the Canary ESD Service with DuPont Photomasks and AMD's subsequent utilization are reflective of the kind of industry cooperation required to meet the growing complexity of the subwavelength era," said Scott Gehlke, president and chief executive officer, Ion.
Energy-confining materials such as anthracene "allow light to be effectively transmitted through the 'bottleneck' created by the subwavelength dimensions of the tip near the aperture."
Therefore, people proposed various ways and methods to realize the generation and control of optical bistability such as Fabry-Perot cavities [5], nonlinear prism coupler [6], subwavelength metallic gratings [7], and semiconductor quantum well systems [8].
Hence, the patch element is constructed on the subwavelength unit cell with the grid spacing of p = 8 m m (1/3 [lambda] when operating at 12.5 GHz), instead of the conventional 1/2 [lambda] size unit cell, where [lambda] is the wavelength in free space at central frequency.

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