Information about Iridescent
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The iridescence of the Blue Morpho butterfly wings.
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Iridescence in soap bubbles.
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A fossil ammonite displaying iridescence.
Iridescence is an optical phenomenon characterized as the property of surfaces in which hue changes according to the angle from which the surface is viewed (as may be seen of soap bubbles and butterfly wings).
Iridescence is caused by multiple reflections from multi-layered, semi-transparent surfaces in which phase shift and interference of the reflections modulates the incident light (by amplifying or attenuating some frequencies more than others). This process is the functional analog of selective wavelength attenuation as seen with the Fabry-Pérot interferometer.
The word is derived in part from the Greek word iris (pl. irides), meaning "rainbow", which in turn derives from the goddess Iris of Greek mythology, who is the personification of the rainbow and acted as a messenger of the gods.
Because the apparent image changes with the angle of observation, iridescence is not reproduced by conventional still image photography; however, it can be reproduced by holography (which includes phase information).
See also
External links
- Living photonic crystals
- A 2.2 MB GIF animation of a morpho butterfly showing iridescence
An optical phenomenon is any observable event which results from the interaction of light and matter. See also list of optical topics and optics.
Common optical phenomena are often due to the interaction of light from the sun or moon with the atmosphere, clouds, water, or
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Common optical phenomena are often due to the interaction of light from the sun or moon with the atmosphere, clouds, water, or
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Hue is one of the three main attributes of perceived color, in addition to lightness and chroma (or colorfulness). Hue is also one of the three dimensions in some colorspaces along with saturation, and brightness (also known as lightness or value).
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A soap bubble is a very thin film of soap water that forms a sphere with an iridescent surface. Soap bubbles usually last for only a few moments and then burst either on their own or on contact with another object.
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Rhopalocera
Superfamilies and families
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Superfamilies and families
- Superfamily Hedyloidea:
- Hedylidae
- Superfamily Hesperioidea:
- Hesperiidae
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phase can be readily understood in terms of simple harmonic motion. The same concept applies to wave motion, viewed either at a point in space over an interval of time or across an interval of space at a moment in time.
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Interference is the addition (superposition) of two or more waves that results in a new wave pattern.
As most commonly used, the term interference usually refers to the interaction of waves which are correlated or coherent with each other, either because they
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As most commonly used, the term interference usually refers to the interaction of waves which are correlated or coherent with each other, either because they
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Amplitude modulation (AM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the strength of the transmitted signal in relation to the information being sent.
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In optics, a Fabry-Pérot interferometer or etalon is typically made of a transparent plate with two reflecting surfaces, or two parallel highly reflecting mirrors. (Technically the former is an etalon and the latter is an interferometer, but the terminology is often used
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Greek}}}
Writing system: Greek alphabet
Official status
Official language of: Greece
Cyprus
European Union
recognised as minority language in parts of:
European Union
Italy
Turkey
Regulated by:
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Writing system: Greek alphabet
Official status
Official language of: Greece
Cyprus
European Union
recognised as minority language in parts of:
European Union
Italy
Turkey
Regulated by:
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Plural is a grammatical number, typically referring to more than one of the referent in the real world.
In the English language, singular and plural are the only grammatical numbers.
In English, nouns, pronouns, and demonstratives inflect for plurality.
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In the English language, singular and plural are the only grammatical numbers.
In English, nouns, pronouns, and demonstratives inflect for plurality.
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In Greek mythology, Iris is the personification of the the rainbow and messenger of the gods. As the sun unites Earth and heaven, Iris links the gods to humanity. She travels with the speed of wind from one end of the world to the other[1]
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Greek mythology is the body of stories belonging to the Ancient Greeks concerning their gods and heroes, the nature of the world and the origins and significance of their own cult and ritual practices.
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Rainbows are optical and meteorological phenomena that cause a spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere.
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Holography (from the Greek, όλος-hòlòs whole + γραφή-grafè write) is the science of producing holograms
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Dichroism has two related but distinct meanings in optics. A dichroic material is either one which causes visible light to be split up into distinct beams of different wavelengths (colours) (not to be confused with dispersion), or
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A dichroic filter or thin-film filter is a very accurate color filter used to selectively pass light of a small range of colors while reflecting other colors. By comparison, Dichroic mirrors and dichroic reflectors
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Goniochromism is derived from the greek words gonia which means angle, and chroma which means color. It is the property of certain surfaces to change their colour depending on the angle under which they are viewed.
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Thin-film optics is the branch of optics that deals with very thin structured layers of different materials. In order to exhibit thin-film optics, the thickness of the layers of material must be on the order of the wavelengths of visible light (about 500 nm).
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