“…Optimization in the energy absorption by the metal powders could be possible by laser action on metal particles where laser pulse with frequency close to the particle’s surface plasmon polariton (SPP) resonances are used, resulting in localized electron excitations, leading to optical resonance phenomena (Zayats et al , 2005; Barnes et al , 2003; Hutter and Fendler, 2004; Shinji and Takayuki, 2012). One of the most fascinating aspects of SPPs is the way light is channeled using the system geometries and has been used in wide range of application (Zhao et al , 2006; Pendry, 2000; Zhang and Liu, 2008; Oulton et al , 2009; Genov et al , 2011; Vinnakota and Genov, 2014, 2017). Light-trapping layers using metallic plasmonic microstructures have gained significant attention (Linic et al , 2011; Atwater and Polman, 2010; Schuller, 2010) and efficient resonant light absorption by several plasmonic nanostructures with microcavities (Long, 2009), and gap-plasmon resonators (Rand et al , 2004; Moreau et al , 2012) has been extensively studied.…”