Manipulation of the resonance characteristics of random lasers from dye-doped polymer dispersed liquid crystals in capillary tubes

Resonant energy transfer and light scattering enhancement of plasmonic random lasers embedded with silver nanoplates

“…In comparison with other scattering materials, the output behavior of RL using dye-doped LCs (DDLCs) can be easily modulated through the temperature, magnetic and electric elds. [14][15][16][17] In addition, DDLCs have been used to ll the inside of capillary bers or glass cells to reduce their lasing threshold because of the additional optical connement. [18][19][20] Recently, localized surface plasmon resonance (LSPR), a spectacular physical effect, have attracted a great deal of attention to provide strong electromagnetic eld connement or light trapping around the surface of nanostructures.…”

Lasing properties from dye-doped holographic polymer dispersed liquid crystal confined in two-dimensional cylindrical geometry

“…Different types of LC materials, such as nematic [2,3,[5][6][7], cholesteric [8][9][10], sematic [11,12], blue phase LC [13,14] and LC elastomer [10] have been exploited to generate tunable lasing actions. Other LC/polymer composites including polymer-dispersed LC [2,3,15,16] (PDLC), holographic polymerdispersed LC [1,17,18] (H-PDLC), and polymer-stabilized LC (PSLC) [19] have been also widely studied for tunable lasers. With the rapid development of micro-nano-science and technology, various types of microresonators have been developed, such as the Fabry-Perot cavity [20], distributed feedback (DFB) gratings [17,18], photonic crystals [5], and random resonators [3][4][5].…”

Band-gap-tailored random laser

“…In contrast to conventional lasers, RLs emit light at multiple wavelengths over a broad spatial emission profile due to the lack of a resonance cavity [3]. Therefore, the lasing features, such as position, direction, and wavelength, are unpredictable [4].…”