Luminescence in pure and I-doped AgBr crystals

Moser, F.; Lyu, Sidan

doi:10.1016/0022-2313(71)90025-1

Cited by 54 publications

(29 citation statements)

References 18 publications

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“…The temperature dependence of the total light output agrees with the earlier measurements of Moser and Lyu (1971). According to figure 12, the intensity of the zero-phonon line vanishes long before the rest of the luminescence is quenched, which qualitatively is to be expected (compare Fitchen 1968, Rebane 1970).…”

Section: Dependence Of Intensity On Temperaturesupporting

confidence: 88%

“…Iodine as an impurity is apparently difficult to avoid because of its strong chemical similarity to Br, and residual iodine concentrations of about 0.2 ppm in the AgBr crystals used in these experiments seem to be among the lowest reached so far (Czaja and Schwerdtfeger 1974, see also Moser and Lyu 1971). Despite the fact that we will be concerned with the properties of the impurity iodine, a low concentration will turn out to be important for the resolution of splittings to be discussed later.…”

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

Simple Measurement Technique of the Cross Phase Modulation in Optical Fibers Using Heterodyne Detection Technique

Lee¹,

Lee²,

Kim³

et al. 2002

Jpn. J. Appl. Phys.

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Iodine in AgBr behaves as an isoelectronic trap with the hole being bound first.The bound-exciton zero-phonon photoluminescence line is split by exchange into an A-line and a B-line separated by 0.1 meV. The Zeeman splitting at H = 80 kG is isotropic in agreement with iodine being a substitutional point-like impurity in AgBr. In the low-temperature limit optic and acoustic phonons contribute to the phonon side wing with nearly the same coupling strength. At temperatures below 10 K, up to n = 11 phonons are observed in the phonon side band. We present experimental evidence that these are due to the emission of n optic phonons which, for n > 3, are statistically independent. A multiphonon model which neglects the k dependence of transition rates is introduced; however, the model is useful only qualitatively, With increasing temperature the intensities of the zero-phonon line and of all optic phonon replicas are quenched with an activation energy of 1.66 meV while the acoustic-phonon-assisted emission remains visible. The latter is quenched only at higher temperatures by the ionisation of the electron. This process yields an ionisation energy for the bound exciton of 26 meV from which a binding energy of 20 meV for the free exciton is deduced.

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Section: Dependence Of Intensity On Temperaturesupporting

confidence: 88%

Section: Introductionmentioning

confidence: 91%

Simple Measurement Technique of the Cross Phase Modulation in Optical Fibers Using Heterodyne Detection Technique

Lee¹,

Lee²,

Kim³

et al. 2002

Jpn. J. Appl. Phys.

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show abstract

“…Two broad bands are observed at -495 nm (-2.50 eV) and -585 nm (2.11 eV). The green emission has been associated with low levels of residual iodine (Czaja and Baldereschi 1979, Kanzaki and Sakuragi 1969, Marchetti and Tinti 1979, Moser and Lyu 1971. This is the I ' which exhibits structure, is due to the residual iodine impurity.…”

Section: Resultsmentioning

confidence: 99%

Clearing of a polydisperse water aerosol by a laser pulse in the diffusive—convective regime

Kucherov

2006

Quantum Electron.

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Optically detected magnetic resonance spectra of pure and doped crystals of AgBr have been obtained at liquid helium temperatures. The free-electron g-value was found to be 1.49. This resonance is eliminated by electron-trapping dopants and enhanced by Cd2+ and P b 2 + . A resonance at g = 2.08 has been assigned as the free-hole resonance. This resonance is enhanced by electron-trapping dopants and by Cd2+ and P b Z + . Two strong resonances were found at g-values of 1.81 and 1.76. These resonances are thought to be from carriers trapped at intrinsic sites.

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“…It has previously been suggested that the main emission band at 2.5 eV is due to a radiative decay of an exciton bound to an I-ion in the nominally pure as in the I-doped AgBr crystals (e.g. [3][4][5]. The here observed diferences in the decay time, in its temperature dependence and in the thermal activation energies as well as in the halfwidth of the 2.5 eV emission band indicate that the process, responsible for this band in the pure crystal, differs from that in the I-doped AgBr crystals.…”

Section: Defects and Luminescence In Pure And I-doped Agbr Crystalsmentioning

confidence: 99%

Defects and luminescence in pure and i-doped AgBr crystals

Nagli

Shmilevich

Katzir

et al. 1995

Radiation Effects and Defects in Solids

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Luminescence in pure and I-doped AgBr crystals

Cited by 54 publications

References 18 publications

Simple Measurement Technique of the Cross Phase Modulation in Optical Fibers Using Heterodyne Detection Technique

Simple Measurement Technique of the Cross Phase Modulation in Optical Fibers Using Heterodyne Detection Technique

Clearing of a polydisperse water aerosol by a laser pulse in the diffusive—convective regime

Defects and luminescence in pure and i-doped AgBr crystals

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