title: Optical pressure and temperature sensor based on the luminescence properties of Nd3+ ion in a gadolinium scandium gallium garnet crystal.
abstract: Hypersensitivity to pressure and temperature is observed in the near-infrared emission lines of the Nd(3+) ion in a Cr(3+),Nd(3+):Gd(3)Sc(2)Ga(3)O(12) crystal, associated to the R(1,2)((4)F(3/2))→Z(5)((4)I(9/2)) and R(1,2)((4)F(3/2))→Z(1)((4)I(9/2)) transitions. The former emissions show large linear pressure coefficients of -11.3 cm(-1)/GPa and -8.8 cm(-1)/GPa, while the latter show high thermal sensitivity in the low temperature range. Thus this garnet crystal can be considered a potential optical pressure and/or temperature sensor in high pressure and temperature experiments up to 12 GPa and below room temperature, used in diamond anvil cells and excited with different UV and visible commercial laser due to the multiple Cr(3+) and Nd(3+) absorption bands.
authors.affiliation: Departamento de Física Fundamental y Experimental, Electrónica y Sistemas and MALTA Consolider Team, Universidad de La Laguna. E-38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain.
authors.forename: S F
authors.initials: SF
authors.lastname: León-Luis
authors.forename: J E
authors.initials: JE
authors.lastname: Muñoz-Santiuste
authors.forename: V
authors.initials: V
authors.lastname: Lavín
authors.forename: U R
authors.initials: UR
authors.lastname: Rodríguez-Mendoza
mesh_terms: D003460:Crystallization; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005682:Gadolinium / Q000737:chemistry*; D008163:Luminescent Measurements / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation*; D014160:Transducers, Pressure
chemical_list: D005682:Gadolinium