RT Journal Article T1 Q(M) and the depolarization index scalar metrics A1 Espinosa Luna, Rafael A1 Atondo Rubio, Gelacio A1 Bernabeu Martínez, Eusebio AB A depolarization scalar metric for Mueller matrices, named Q(M) , is derived from the degree of polarization. Q(M) has been recently reported, and it has been deduced from the nine bilinear constraints between the sixteen elements of the Mueller–Jones matrix. We discuss the relations between Q(M) and the depolarization index. PB The Optical Society Of America SN 1559-128X YR 2008 FD 2008-04-01 LK https://hdl.handle.net/20.500.14352/51159 UL https://hdl.handle.net/20.500.14352/51159 LA eng NO © 2008 Optical Society of America.R. Espinosa-Luna expresses his gratitude to CONACYT (project 46969-F), to CONCYTEG (05-04-K117-066-A02), and to Grupo Santander (program Visitantes Distinguidos at the Universidad Complutense de Madrid 2006) for the support provided for the realization of this work. NO Consejo Nacional de Ciencia y Tecnología (CONACYT), México NO Consejo de Ciencia y Tecnologia del Estado de Guanajuato (CONCYTEG), México NO Grupo Santander (España) DS Docta Complutense RD 18 abr 2025