Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Thomas M. Pollak"'
Publikováno v:
Journal of Crystal Growth. 310:1891-1896
Zinc germanium phosphide (ZGP), ZnGeP 2 , is the non-linear optical crystal of choice for laser frequency conversion in the 2–8 μm spectral range by virtue of its high non-linear coefficient ( d 14 =75 pm/V) and thermal conductivity (0.35 W/(cm K)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28bf8bd7792a16bb217a5f93c03b9858
https://doi.org/10.1016/j.jcrysgro.2007.11.151
https://doi.org/10.1016/j.jcrysgro.2007.11.151
Publikováno v:
Journal of Crystal Growth. 310:1897-1903
Cadmium germanium arsenide (CGA), CdGeAs 2 , is a chalcopyrite-structured non-linear optical crystal with a high non-linear optical coefficient ( d 36 =236 pm/V) and a transparency range of 2.3–18 μm. This compound is also known to be a glass-form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a28b8a8a20fbdfaad4577c3291bfcee
https://doi.org/10.1016/j.jcrysgro.2007.11.150
https://doi.org/10.1016/j.jcrysgro.2007.11.150
Publikováno v:
Journal of Crystal Growth. 287:248-251
AgGaGeS 4 and AgGaGe 5 Se 12 are promising new nonlinear optical crystals for frequency-shifting 1-μm solid state lasers into the mid-infrared (2–12 μm) spectral range. The quaternary compounds were synthesized by vapor transport in sealed ampoul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270baba6dd077b797dd64a52f04ff8f6
https://doi.org/10.1016/j.jcrysgro.2005.11.017
https://doi.org/10.1016/j.jcrysgro.2005.11.017
Publikováno v:
Optical Materials. 26:501-505
A photoluminescence (PL) study has been performed on a set of p-type bulk single crystalline samples of CdGeAs2. At liquid-helium temperatures, a PL band peaking near 0.55 eV was observed in samples with enhanced absorption at 5.5 μm. This PL band w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::122569e2cd2c728b1a55279bf67dfbd6
https://doi.org/10.1016/j.optmat.2003.12.024
https://doi.org/10.1016/j.optmat.2003.12.024
Autor:
Peter G. Schunemann, Robert S. Feigelson, Lihua Bai, Thomas M. Pollak, Nancy C. Giles, Kosuke Nagashio
Publikováno v:
Journal of Applied Physics. 95:4840-4844
A photoluminescence (PL) study has been performed from 5 to 200 K on a series of p-type bulk CdGeAs2 single crystals. Within our large set of samples, the peak position of an emission band at 5 K was observed to vary from about 0.54 to 0.58 eV when u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c31581b42c63aa0b5d9940ab7c04d48
https://doi.org/10.1063/1.1687996
https://doi.org/10.1063/1.1687996
Autor:
Peter G. Schunemann, Roger K. Route, K. T. Stevens, Larry E. Halliburton, Nancy C. Giles, N. Y. Garces, Robert S. Feigelson, Lihua Bai, Thomas M. Pollak, Scott D. Setzler
Publikováno v:
Journal of Physics: Condensed Matter. 16:2593-2607
Optical absorption, electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) have been used to characterize Ni+ ions substituting for Ag+ ions in AgGaSe2 crystals. These Ni+ ions are responsible for a strongly polarized opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::082daca0a8210b24c41beef0dc6a502d
https://doi.org/10.1088/0953-8984/16/15/011
https://doi.org/10.1088/0953-8984/16/15/011
Autor:
M. M. Chirila, K. T. Stevens, Peter G. Schunemann, Lihua Bai, Thomas M. Pollak, N. Y. Garces, Nancy C. Giles, Scott D. Setzler
Publikováno v:
Journal of Applied Physics. 93:8975-8981
An optical absorption investigation from 10 to 296 K has been performed on bulk crystals of ZnGeP2 grown by the horizontal-gradient-freeze method. We identify three broad absorption bands in the spectral range from 1 to 4 μm that are due to native d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad658fe189478b97a2ae9ca87ee59bfa
https://doi.org/10.1063/1.1572195
https://doi.org/10.1063/1.1572195
Publikováno v:
Journal of Physics: Condensed Matter. 15:1625-1633
Electron paramagnetic resonance (EPR) and electron-nuclear double resonance have been used to characterize the neutral copper acceptor in ZnGeP2 crystals. The copper substitutes for zinc and behaves as a conventional acceptor (i.e. the 3d electrons d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ca29693514dc3e8bc4925543e081bbd
https://doi.org/10.1088/0953-8984/15/10/311
https://doi.org/10.1088/0953-8984/15/10/311
Autor:
Scott D. Setzler, Lijun Wang, N. Y. Garces, Nancy C. Giles, Lihua Bai, Peter G. Schunemann, Thomas M. Pollak, K. T. Stevens
Publikováno v:
Journal of Applied Physics. 92:77-81
Bulk ZnGeP2 crystals were diffusion doped with copper and investigated using photoluminescence (PL) spectroscopy, photoluminescence excitation (PLE), and Fourier-transform-infrared spectroscopy. A PL band at 1.3 eV at 5 K was observed. The temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c243790c5d6b690d5f8f9f24b25b4a0c
https://doi.org/10.1063/1.1481971
https://doi.org/10.1063/1.1481971
Publikováno v:
Journal of Crystal Growth. 225:440-444
Increased axial temperature gradients and growth rates have resulted in segregation of unwanted absorbing defects to the edges of CdGeAs 2 single crystals produced by the horizontal gradient freeze technique. Long-wavelength infrared imaging of polis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::573f00fb3e6d71d890cf2e9be2951b24
https://doi.org/10.1016/s0022-0248(01)00912-5
https://doi.org/10.1016/s0022-0248(01)00912-5