Optically stimulated luminescence

OSL processes after UV light irradiation in AIN ceramics were studied in a number of our papers [30,32,36,37]. Under optical stimulation - illumination with visible or IR light - the OSL signal occurs as a decaying pulse of luminescence. Intensity and decay time of the particular OSL pulse depends both on previous irradiation dose and intensity and wavelength of the stimulation light. 

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Optically stimulated luminescence Amount of light emitted when sample is illuminated with laser light Sediments and soil Textbox 24... 

Both the thermoluminescence and optically stimulated luminescence techniques are suitable for dating past heating events over a timespan ranging... 

OSL Acronym for optically stimulated luminescence. oven A furnace used at relatively low temperatures, overglaze Pigment applied to the surface of pottery after glazing. oxidation A type of chemical reactions in which an atom or atomic group combines with oxygen or one or more electrons are removed from it. oxide A substance composed by the chemical combination of oxygen with another element. 

Stimulated release from an electron from the trap to the collection band, followed by emissive recombination with an activator. This process is called thermoluminescence (electron release stimulated by heating) and optically stimulated luminescence (electron release stimulated by light) (Fig. 2.6d) Extrinsic luminescence, where after being excited, electrons of defect ions recombine with the ground state with luminescence emission (Fig. 2.6e) ... 

Figure 9. This alkaline-based glaze with a managanese Splash-glaze decoration was assigned to INAA Group 1. This sherd was directly dated by Optically Stimulated Luminescence to 1230 +/- 330A.D. (OxL-1353) (17).

For metal, dielectric and semiconductor films fabrication, optical and silica glass are popular substrate materials because of their availability, cost-effectiveness, and inert character, i.e., they are stable in the required temperature range for common photonic, optoelectronic and photovoltaic applications, they do not chemically react with the prepared films, and the hard plane surface makes the formation of optically smooth thin films fairly easy. Generally, it is preferable to form films by a simple, low-temperature, inexpensive and environment friendly method. Sol-gel technique and thermal evaporation is found suitable for the preparation of film parts of efficient solar cells [1], emitters, transformers [2], detectors and modulators of light [3], as well as optically stimulated luminescence dosimeters [4]. Here, we present the experimental data on the resistance to high-power optical and ionizing irradiations of the undoped components of film compositions with nanociystais. 

Luminescence The light emitted by something in response to a stimulus. Specific names are used for different stimuli, e.g., thermoluminescence, optically-stimulated luminescence, photoluminescence, triboluminescence etc. 

Photoluminescence (PL) The photons of light emitted in response to an incident beam of photons, the emitted photons usually having lower energies (longer wavelengths) than those of the incident photons. If the emitted photons have higher energies the term optically-stimulated luminescence is normally used. 

Luminescence of AIN ceramics was studied (i) during irradiation process, in the case of UV fight irradiation this type of luminescence is called photoluminescence (PL), (fi) after ceasing of irradiation - in the form of afterglow (AGL), (iii) during heating of the previously irradiated sample - in the form of thermoluminescence (TL), (iv) during illumination of the previously irradiated sample - in the form of optically stimulated luminescence (OSL). 

There are more techniques used by TL investigators. For example, phototransferred TL (PTTL) and optically stimulated luminescence (OSL). These will be dealt with when discussing papers using such techniques. 

The principle and use of detector materials based on optically stimulated luminescence (OSL) are similar to those of the TL ones, but the reading does not destroy the stored information. 

Boetter-Jensen L, McKeever SWS, Wintle AG (2003) Optically stimulated luminescence dosimetry, Elsevier. Bradshaw WW, Cadena DC, Crawford EW, Spetder HAW (1962) Radiat Res 17 11... 

Optically stimulated luminescence (OSL) is capable of de-trapping radiation-induced excitation energy accumulated during the irradiation of a surface (Kosierb 2007). The release... 

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