Browsing Conferinţa ICNBME - International Conference on Nanotechnologies and Biomedical Engineering by Subject "optical spectroscopy"

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Excitonic States in Brillouin Zone Center of GaSe Layered Crystals

ZALAMAI, Victor V.; TIRON, A. V.; CRISTEA, E.; STAMOV, I. G. (Springer, Cham, 2022)

Optical spectra (absorption and reflection) of GaSe layered crystals were studied at room and low (10 K) temperatures. Contours of measured reflection spectra were fitted by help of dispersion equations. Photoluminescence ...
Near-edge Optical Properties of Layered Tin Sulfide (Selenide) Crystals

ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; MONAICO, E. V.; SYRBU, N. N. (Tehnica UTM, 2019)

Absorption (K), reflection (R) and wavelength modulated transmission (ΔT/Δλ) spectra in SnS, SnS2 and SnSe crystals were investigated in temperature range from 300 to 10 K. Excitonic states were discovered in all investigated ...
Optical Activity in Mn Doped As2S3 Glasses

ZALAMAI, V. V.; TIRON, A. V.; IOVU, M. S.; SYRBU, N. N. (Tehnica UTM, 2019)

Spectral dependences of transmittance (T) and wavelength modulated transmittance (ΔT/Δλ) of As2S3 layers doped by manganese (Mn) of different concentrations (0–0.5%) were investigated at temperatures from 10 to 300 K. ...
Refractive Index in the Region of Excitonic Resonances in TlGaSe2 Crystals

TIRON, A. V. (Tehnica UTM, 2019)

The low-temperature transmission and wavelength modulated transmission spectra of ТlGaSе2 crystals with a thickness of 7, 5.7, 4.7 μm were measured. Refractive index was calculated from interference observed in transmission ...

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