Dichroic property of the H2O-groups in α-quartz, LiNbO3 and LiTaO3 in the infrared range

Wang, T.B.; Guo, Shengli; Chen, L.; Liu, Chao; Li, H.; Liu, Z.G.; Tan, C.Z.

doi:10.1016/j.ijleo.2006.04.018

Cited by 2 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As it can bee seen from Fig. 1, at room temperature, the spectrum represents the absorption band caused by OH − stretching vibrations characteristic for congruent LiNbO 3 [2][3][4][5][7][8][9][10]. Maximum of the band lies at around 3480 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

“…From that time much work has been done on that topic. * corresponding author; e-mail: sugak@carat.lviv.ua Nevertheless, many aspects related to the OH − absorption spectra, such as site occupation of protons or the components of OH − absorption band are only partly understood [7][8][9][10]. The form of the absorption band and its maximum position are dependent on the crystals composition -congruent, stoichiometric, presence of impurities.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing

Sugak

Zhydachevskii

et al. 2010

Acta Phys. Pol. A

View full text Add to dashboard Cite

The work presents experimental results of an in situ investigation of the OH − absorption in pure and MgO-doped LiNbO3 crystals during reducing (95% Ar + 5% H2) and oxidizing (O2) high-temperature treatments in the temperature range from room temperature to 820 K. The absorption spectra measured in situ at high temperatures in reducing/oxidizing atmospheres have been analyzed. The origin of the changes in optical absorption caused by heating of the crystal is discussed in terms of the OH-bonds orientation change.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing

Sugak

Zhydachevskii

et al. 2010

Acta Phys. Pol. A

View full text Add to dashboard Cite

show abstract

“…Their results are also listed in Table1. Vibrational modes related with O-H in LiTaO 3 crystals had been reported by many groups[4,27].Vibrational modes related with O-D in LiTaO 3 crystals (without deuteron exchange) had not been reported. In the present observation, the FWHM of O-H and O-D vibrational modes in RRS spectra (fig 4) are larger by a factor of 10 in comparison to reported FTIR spectra.…”

mentioning

confidence: 92%

Resonant Raman of O–H/O–D vibrations and photoluminescence studies in LiTaO3 thin film

Satapathy¹,

Kumar²,

Sekhar³

et al. 2008

Journal of Applied Physics

View full text Add to dashboard Cite

Resonant Raman spectra (RRS) of O-H and O-D vibration and libration modes, their combinations and higher harmonics have been observed in LiTaO 3 polycrystalline thin films. RRS peaks are superimposed on photoluminescence (PL) spectrum. Monochromatic light from a xenon lamp is used as excitation source. PL spectrum shows two broad peaks, first near the band gap in UV (4.4-4.8eV) and another in the sub band gap region (< 4.0 eV). Band gap PL along with RRS peaks are reported for the first time. Photoluminescence excitation spectrum (PLE) shows a peak at 4.8 eV. Peak positions and full width at half maximum (FWHM) of RRS peaks depend upon the excitation energy. Dispersions of the fundamental and the third harmonic of the stretching mode of O-H with excitation energy are about 800 cm -1 /eV and 2000 cm -1 /eV respectively. This dispersion is much higher than reported in any other material.

show abstract

Dichroic property of the H2O-groups in α-quartz, LiNbO3 and LiTaO3 in the infrared range

Cited by 2 publications

References 15 publications

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing

Resonant Raman of O–H/O–D vibrations and photoluminescence studies in LiTaO3 thin film

Contact Info

Product

Resources

About

Dichroic property of the H2O-groups in α-quartz, LiNbO3 and LiTaO3 in the infrared range

Cited by 2 publications

References 15 publications

In situ Investigation of OH-Absorption in LiNbO3and LiNbO3:MgO Crystals during Reducing/Oxidizing Annealing

In situ Investigation of OH-Absorption in LiNbO3and LiNbO3:MgO Crystals during Reducing/Oxidizing Annealing

Resonant Raman of O–H/O–D vibrations and photoluminescence studies in LiTaO3 thin film

Contact Info

Product

Resources

About

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing

In situ Investigation of OH^-Absorption in LiNbO₃and LiNbO₃:MgO Crystals during Reducing/Oxidizing Annealing