Low-temperature time-resolved vacuum UV spectroscopy of NH4H2PO4 crystals / Ogorodnikov IN,Pustovarov VA,Kirm M,Cheremnykh VS // OPTICS AND SPECTROSCOPY. - 2004. - V. 97, l. 2. - P. 244-250.

ISSN/EISSN:

0030-400X / нет данных

Type:

Article

Abstract:

A complex investigation of the dynamics of electronic excitations in nonlinear optical crystals of ammonium dihydrophosphate NH4H2PO4 was performed using low-temperature vacuum UV luminescence spectroscopy with time resolution upon selective photoexcitation by synchrotron radiation. Data on the photoluminescence decay kinetics, time-resolved photoluminescence spectra (2-6.2 eV), and time-resolved photoluminescence excitation spectra (4-24 eV) were obtained for the first time for NH4H2PO4 crystals at 8 K. It is ascertained that the photoluminescence of NH4H2PO4 crystals in the vicinity of 4.7 eV has intrinsic character due to the radiative annihilation of self-trapped excitons. Possible channels of generation and decay of relaxed and unrelaxed electronic excitations in NH4H2PO4 crystals are discussed. (C) 2004 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

KH2PO4 CRYSTALS; ULTRAVIOLET REFLECTION; DIHYDROGEN PHOSPHATE; OPTICAL-ABSORPTION; IRRADIATED KH2PO4; HYDROGEN-BONDS; ADP NH4H2PO4; KDP KH2PO4; EPR; CONDUCTION

DOI:

10.1134/1.1790642

Web of Science ID:

ISI:000225024300012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	OPTICAL SOC AMER
Address	2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Language	English
Keywords-Plus	KH2PO4 CRYSTALS; ULTRAVIOLET REFLECTION; DIHYDROGEN PHOSPHATE; OPTICAL-ABSORPTION; IRRADIATED KH2PO4; HYDROGEN-BONDS; ADP NH4H2PO4; KDP KH2PO4; EPR; CONDUCTION
Research-Areas	Optics; Spectroscopy
Web-of-Science-Categories	Optics; Spectroscopy
Author-Email	ogo@dpt.ustu.ru
ResearcherID-Numbers	Kirm, Marco/M-1533-2016 Ogorodnikov, Igor/B-4162-2011
ORCID-Numbers	Kirm, Marco/0000-0002-1833-6894 Ogorodnikov, Igor/0000-0002-4700-2340
Number-of-Cited-References	34
Usage-Count-Since-2013	5
Journal-ISO	Opt. Spectrosc.
Doc-Delivery-Number	869ZR