File:Fluorescence in calcite.jpg
Algfail (3456 × 2304 pikslit, faili suurus: 1,97 MB, MIME tüüp: image/jpeg)
Pealdised
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See pilt valiti 2018. aasta 16. jaanuari päevapildiks. Pildil oli järgnev allkiri: Teistes keeltes:
Italiano: Fluorescenza e birifrangenza prodotta da un fascio laser blu da 445 nm in un cristallo di calcite. Polski: Zjawisko fluorescencji oraz dwójłomności w krysztale kalcytu oświetlonym niebieskim laserem o długości fali 445 nm. Русский: Флуоресценция и двойное лучепреломление синего лазера с длиной волны 445 нанометров в кристале кальцита. Українська: Флюоресценція та подвійне променезаломлення синього лазеру з довжиною хвилі 445 нанометрів в кристалі кальциту. |
Lühikirjeldus[muuda]
KirjeldusFluorescence in calcite.jpg |
English: Fluorescence and birefringence of 445 nm laser in calcite crystal.
The blue laser beam is only visible when the blue light is scattered, for example, by dust particles. Due to the 1.3s exposure time, no individual dust particles can be seen. Dust particles are present in the air, but not in the crystal. In the crystal, some part of the blue light is absorbed and re-emitted as orange light, which is called fluorescence. Most of the blue light just continues to the other end of the crystal. On the lower left you can see the laser beam going in. Part of the light is reflected on the front surface of the crystal; this is the beam you see on the upper left. In the crystal, the two polarisations are refracted by different angles, forming two beams in the crystal. At the end surface, the two beams (both of which are polarised along the axes of the crystal) are refracted back to their original direction, forming the two parallel beams on the right. Inside the crystal, the two beams cause fluorescence and non-polarised orange light is emitted from each point along both beams in every direction. As this light leaves the crystal, it's separated into two orthogonal polarisations, which are refracted by different angles, so that the observer sees four orange beams. The additional spots and beams you can see result from internal reflections.Français : Fluorescence et birefringence dans un bloc de calcite par un laser de 445nm.
Polski: Zjawisko fluorescencji oraz dwójłomności w krysztale kalcytu oświetlonym niebieskim laserem o długości fali 445 nm.
Русский: Флюоресценция и двойное лучепреломление лазерного луча с длиной волны 445 нм в кристалле кальцита
Українська: Флюоресценція та подвійне променезаломлення синього лазеру з довжиною хвилі 445 нанометрів в кристалі кальциту.
Italiano: Fluorescenza e birifrangenza prodotta da un fascio laser blu da 445 nm in un cristallo di calcite.
فارسی: نگارهای از ضریب شکست مضاعف پرتوهای لیزر در حالی که از طریق یک کانی کلسیت عبور میکند ، برخی از اثرات فلورسنس نیز وجود دارد. |
Kuupäev | |
Allikas | Üleslaadija oma töö |
Autor | Jan Pavelka |
See pilt lisati Euroopa teadusfoto võistluse 2015 raames. |
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viimane | 30. november 2015, kell 15:07 | 3456 × 2304 (1,97 MB) | Hapecko (arutelu | kaastöö) | User created page with UploadWizard |
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Kaamera tootja | Canon |
---|---|
Kaamera mudel | Canon EOS 350D DIGITAL |
Säriaeg | 13/10 sek (1,3) |
F-arv | f/2 |
Valgustundlikkus (ISO) | 100 |
Andmete loomise kuupäev ja kellaaeg | 26. mai 2011, kell 11:22 |
Fookuskaugus | 50 mm |
Orientatsioon | Normaalne |
Horisontaalne eraldus | 72 dpi |
Vertikaalne eraldus | 72 dpi |
Faili muutmise kuupäev ja kellaaeg | 26. mai 2011, kell 14:18 |
Y- ja C-positsioonimine | Kõrvuti asetatud |
Säriprogramm | Katiku prioriteet |
Exif-versioon | 2.21 |
Digiteerimise kuupäev ja kellaaeg | 26. mai 2011, kell 11:22 |
Iga komponendi tähendus |
|
APEX-säriaeg | −0,37850952148438 |
APEX-avaarv | 2 |
Särituse mõju | 0 |
Mõõtmisviis | Muster |
Välk | Välk ei töötanud, välk keelatud |
Toetatud Flashpixi versioon | 1 |
Värviruum | sRGB |
Fokaaltasandi rõhteraldus | 3954,233409611 |
Fokaaltasandi püsteraldus | 3958,7628865979 |
Fokaaltasandi eraldusühik | toll |
Kohandatud pilditöötlus | Tavatöötlus |
Särituse meetod | Automaatne säritus |
Valge tasakaal | Automaatne valge tasakaal |
Ülesvõtte tüüp | Standardne |
Struktuurandmed
Teatud väärtus ilma Vikiandmete üksuseta
26. mai 2011
captured with inglise
Canon EOS 350D inglise
source of file inglise
original creation by uploader inglise
1,3 sekund
f-number inglise
2
50 millimeeter
ISO speed inglise
100
media type inglise
image/jpeg
- Pictures of the Year (finalist)
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- Featured pictures from Wiki Science Competition
- Featured pictures of minerals