संदीप्ति

लुमिनॉल (Luminol) एवं हीमोग्लोबिन(hemoglobin) - रासायनिकसंदीप्ति के उदाहरण

कम तापमान पर उत्सर्जित होने वाले प्रकाश को संदीप्ति (Luminescence) कहते हैं। यह वस्तुतः 'शीत वस्तु विकिरण' (cold body radiation) का एक प्रकार है।

संदीप्ति के प्रकार

• जीवदीप्ति (Bioluminescence) - by a living organism
• रासायनिक संदीप्ति (Chemoluminescence) - resulting of a chemical reaction
  • विद्युतरासायनिकसम्दीप्ति (Electrochemiluminescence) - by an electrochemical reaction
• Crystalloluminescence, produced during crystallization
• विद्युतसंदीप्ति (Electroluminescence) - in response to an electric current passed through it
  • कैथोडसंदीप्ति (Cathodoluminescence) - where beam of electrons impacts on a luminescent material such as a phosphor
• यांत्रिकसंदीप्ति (Mechanoluminescence) - resulting from any mechanical action on a solid
  • Triboluminescence, generated when bonds in a material are broken when that material is scratched, crushed, or rubbed
  • Fractoluminescence, generated when bonds in certain crystals are broken by fractures
  • Piezoluminescence, produced by the action of pressure on certain solids
• प्रकाशसंदीप्ति (Photoluminescence), absorption of photons causing re-radiation of photons
  • स्फुरदीप्ति (Phosphorescence) - delayed re-radiation
  • प्रतिदीप्ति (Fluorescence) - where the emitted photons are of lower energy than those absorbed
• रेडियोसंदीप्ति (Radioluminescence) - produced in a material by the bombardment of ionizing radiation
• ध्वनिसंदीप्ति (Sonoluminescence) - from imploding bubbles in a liquid when excited by sound
• तापसंदीप्ति (Thermoluminescence) - when absorbed light is re-emitted on heating.

अनुप्रयोग

• Light Emitting Diode's (LED's) emit light via electroluminescence
• Phosphors, emitting light when irradiated by higher-energy electromagnetic radiation or particle radiation
• Phosphor thermometry, phosphorescence can be used to detect the temperature of an object.

इन्हें भी देखें

• प्रकाश स्रोतों की सूची
• प्रदीप्ति (Illumination)

बाहरी कड़ियाँ

• Luminescence chart
• Luminescence on Scienceworld
• Fluorophores.org The database of luminescent dyes
• Luminiscent microspheres