caa a22 4500 467927839 CHVBK 20180406152934.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1134/S0020168506110136 doi (NATIONALLICENCE)springer-10.1134/S0020168506110136 Infrared emission of single-crystal calcite under broadband short-wavelength excitation [Elektronische Daten] [V. Gorelik, A. Gagarinov, O. Degtyareva, V. Savranskii, E. Terpugov] Our results demonstrate that broadband excitation of an oriented calcite single crystal with the radiation from a cw xenon lamp (incident power density of ∼1 W/cm2) gives rise to secondary IR emission from the crystal surface. We have measured the IR emission spectrum of a calcite single crystal in two orientations in the range 500-1500 cm−1 with a resolution of ∼1 cm−1 using a Fourier transform IR spectrometer. The spectrum shows sharp lines arising from IR-active (polar) vibrational transitions in the calcite crystal and can be interpreted in trems of a two-photon decay of a nonpolar vibrational state (A 1g mode) effectively excited through broadband visible pumping. We analyze the ways of raising the efficiency of the conversion of primary (visible) to secondary IR radiation. In particular, this might be achieved using photonic crystals and an excitation frequency near the maximum in their density of states. The new type of IR emission spectroscopy, taking advantage of broadband visible or UV excitation of molecular vibrations in bulk dielectric inorganic materials or materials infiltrated into the pore space of globular photonic crystals, appears to have considerable promise. Pleiades Publishing, Inc., 2006 Gorelik V. Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, 119991, Moscow, Russia aut Gagarinov A. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut Degtyareva O. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut Savranskii V. Natural Sciences Center, Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, 119991, Moscow, Russia aut Terpugov E. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut Inorganic Materials Nauka/Interperiodica 42/11(2006-11-01), 1251-1254 0020-1685 42:11<1251 2006 42 10789 https://doi.org/10.1134/S0020168506110136 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506110136 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gorelik V. Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Gagarinov A. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Degtyareva O. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Savranskii V. Natural Sciences Center, Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Terpugov E. Institute of Cell Biophysics, Russian Academy of Sciences, 142292, Pushchino, Moscow oblast, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/11(2006-11-01), 1251-1254 0020-1685 42:11<1251 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer