Zobrazeno 1 - 10
of 31
pro vyhledávání: '"F. Beerwerth"'
Publikováno v:
The British journal of dermatology. 165
Light-based hair removal (LHR) is one of the fastest growing, nonsurgical aesthetic cosmetic procedures in the United States and Europe. A variety of light sources including lasers, e.g. alexandrite laser (755 nm), pulsed diode lasers (800, 810 nm),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a9ed81c61537ba9ffa46319f25279038
https://pubmed.ncbi.nlm.nih.gov/22171683
https://pubmed.ncbi.nlm.nih.gov/22171683
Publikováno v:
physica status solidi (b). 145:195-201
The temperature dependence of the linewidth of the lowest two Γ excitons in CsI and in CsBr and of a very narrow Γ exciton in CsI is reported. All spectra are measured by three-photon spectroscopy. The analysis of the experimental results allows co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0fce9f760e800952e7e33f01f2602ef
https://doi.org/10.1002/pssb.2221450117
https://doi.org/10.1002/pssb.2221450117
Publikováno v:
Ferroelectrics. 61:241-247
Second harmonic and sum frequency generation are used to investigate the nonlinear optical properties of K2SeO4 in its low temperature phases. All nonlinear coefficients are determined in the ferroelectric phase below 93 K. It is shown that the nonli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::028864cfd40ba67cad21885a25e5d115
https://doi.org/10.1080/00150198408018937
https://doi.org/10.1080/00150198408018937
Autor:
F. Beerwerth, Dietmar Fröhlich
Publikováno v:
Physical Review B. 36:6239-6241
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c934cc5191f616938a5a49dbc3f94354
https://doi.org/10.1103/physrevb.36.6239
https://doi.org/10.1103/physrevb.36.6239
Autor:
F. Beerwerth, Dietmar Fröhlich
Publikováno v:
Physical Review Letters. 55:2603-2605
Three-photon spectroscopy is introduced as a useful tool for the investigation of electronic transitions in solids. This technique is used to study resonances on the upper polariton branch, and even on the longitudinal exciton. This is the first such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b5e0134e63f6eaa1d888ab7dc7064af
https://doi.org/10.1103/physrevlett.55.2603
https://doi.org/10.1103/physrevlett.55.2603
Akademický článek
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Autor:
Dietmar Fröhlich, F. Beerwerth
Publikováno v:
Physical review letters. 57(11)
Mesures dans des champs jusqu'a 9T sur monocristaux de CsI, a 4,2 K; separation d'une raie d'exciton etroite Γ 5 − a 5,8076 eV et observation d'un exciton de symetrie Γ 3 − en champ fort. Influence du champ sur l'interaction Γ 3 − -Γ 5 −
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1eb0e57d53c17bdeba2908a558bab0e0
https://pubmed.ncbi.nlm.nih.gov/10033421
https://pubmed.ncbi.nlm.nih.gov/10033421
Publikováno v:
Physical review. B, Condensed matter. 38(6)
Three-photon spectra of nine alkali halides are presented. The nonlinear-optical method of three-photon spectroscopy allows one to measure resonances on the upper polariton branch and the longitudinal exciton at different values of the total k vector
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f973b6ea8eae97841d48e8b4a7922a99
https://pubmed.ncbi.nlm.nih.gov/9946800
https://pubmed.ncbi.nlm.nih.gov/9946800
Autor:
Dietmar Fröhlich, F. Beerwerth
Publikováno v:
Journal of Luminescence. :435-436
Three-photon spectra of the lowest exciton in KI are presented. The longitudinal-transverse splitting and the energy of the longitudinal exciton are determined by use of K-space spectroscopy. The detailed analysis of magnetooptic experiments yields r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d198a3ae71d03f9b83a2b215ac745a
https://doi.org/10.1016/0022-2313(88)90269-4
https://doi.org/10.1016/0022-2313(88)90269-4
Publikováno v:
Journal of Luminescence. :477-478
The detailed temperature dependence of the linewidth of the first two Γ - 4 excitons and of a very narrow Γ − 5 exciton is reported. All spectra are measured by three-photon spectroscopy. The experimental results can be well fitted if one assumes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f2e4934eb61c1bc4dbb39aec076e838
https://doi.org/10.1016/0022-2313(88)90290-6
https://doi.org/10.1016/0022-2313(88)90290-6