Lattice dynamics and infra-red absorption of diamond

Wehner, R.K.; Borik, H.; Kress, W.; Goodwin, A. R.; Smith, S. D.

doi:10.1016/0038-1098(67)90279-7

Cited by 39 publications

(11 citation statements)

References 2 publications

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“…The sum of these contributions is shown as the red-dashed line. The single-phonon lineshape required to give an accurate fit is a continuum up to the cut-off at 165 meV that represents the upper limit of the bulk phonon energies [27], within which range it is greatest at acoustic phonon energies between 50 and 110 meV and is split into a doublet. A small amount of coupling to bulk optical modes is visible around 150 meV.…”

Section: Photoluminescence (Pl) Spectroscopymentioning

confidence: 99%

Optical properties of a single-colour centre in diamond with a green zero-phonon line

et al. 2011

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Abstract. We report the photoluminescence characteristics of a colour centre in diamond grown by plasma-assisted chemical vapour deposition. The colour centre emits with a sharp zero-phonon line at 2.330 eV (λ = 532 nm) and a lifetime of 3.3 ns, thus offering potential for a high-speed singlephoton source with green emission. It displays a vibronic emission spectrum with a Huang-Rhys parameter of 2.48 at 77 K. Hanbury-Brown and Twiss measurements reveal that the electronic level structure of the defect includes a metastable state that can be populated from the optically excited state.

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Section: Photoluminescence (Pl) Spectroscopymentioning

confidence: 99%

Optical properties of a single-colour centre in diamond with a green zero-phonon line

et al. 2011

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“…Considerably improved agreement between theory and experiment has been obtained for diamond by the authors [15] using a more complete theory of the second-order dipole moment and adjusting the value of one of the shell model force constants. Here we describe in detail the model and methods used in [15] and apply these to calculate spectra of silicon and germanium. As for diamond, we determine for silicon and germanium the numerical values of the dipole moment parameters.…”

Section: Introductionmentioning

confidence: 87%

“…Such calculations have recently been performed by Dolling and Cowley [14]. Considerably improved agreement between theory and experiment has been obtained for diamond by the authors [15] using a more complete theory of the second-order dipole moment and adjusting the value of one of the shell model force constants. Here we describe in detail the model and methods used in [15] and apply these to calculate spectra of silicon and germanium.…”

Section: Introductionmentioning

confidence: 93%

Infrared Lattice Absorption of Silicon and Germanium

Kress

Borik

Wehner

1968

Physica Status Solidi (b)

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The two-phonon absorption bands of silicon and germanium are calculated taking into account the second-order dipole moment up to second-nearest neighbours. The agreement between the calculated and measured bands shows that the shell model used in our calculations gives quite good phonon dispersion curves. The detailed analysis of the remaining deviations between measured and calculated frequencies indicates that in some points of the Brillouin zone the shell model should be corrected.Die Zweiphononen-Absorptionsbanden von Silizium und Germanium werden berechnet, wobei das Dipolmoment zweiter Ordnung bis zu zweitniichsten Nachbarn berucksichtigt wird. Die Vbereinstimmung zwischen den berechneten und gemessenen Banden zeigt, daB das fur die Rechnungen zugrunde gelegte Schalenmodell die Phononendispersionskurven recht gut wiedergibt. Die niihere Betrachtung der restlichen Abweichungen zwischen gemessenen und berechnetenFrequenzen ergibt, daD in einem gewissen Bereich der Brillouinzone das Schalenmodell besser angepaBt werden sollte.

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“…A rácsrezgésekhez való csatolást a gyémántrács fonon állapotsűrűsége határozza meg, amelyet több alkalommal kiszámoltak, és kísérletileg is meghatároztak [1,99,100]. A színcentrumnál történő elektronátmenetnél az elektron-fonon csatolás szempontjából elsősorban azokkal a fononokkal kell számolni, melyek hullámvektora a Brillouin zóna magasabb szimmetriájú pontjaiban találhatóak, az ún.…”

Section: áBra: a Legvalószínűbb áTmenet Az Abszorpció éS Az Emisszió unclassified

“…Az egyik, hogy ezeknek a fononoknak a legrövidebb a hullámhossza, ezért a legnagyobb változásokat okozhatják az atomok közötti távolságban, ugyanakkor ezek a hullámhosszak összevethetőek a színcentrum térbeli méreteivel. A másik, hogy a fonon állapotsűrűség ezeknél a pontoknál az ellaposodó fonondiszperziós görbe miatt jelentősen megnő és maximumhelyeket mutat [100,101]. …”

Section: áBra: a Legvalószínűbb áTmenet Az Abszorpció éS Az Emisszió unclassified

Lumineszcencia centrumok kialakítása és spektrális jellemzése nanogyémántban

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Lattice dynamics and infra-red absorption of diamond

Cited by 39 publications

References 2 publications

Optical properties of a single-colour centre in diamond with a green zero-phonon line

Optical properties of a single-colour centre in diamond with a green zero-phonon line

Infrared Lattice Absorption of Silicon and Germanium

Lumineszcencia centrumok kialakítása és spektrális jellemzése nanogyémántban

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