Laser heated pedestal growth and characterization of the crystalline fibers of KDP doped L-arginine phosphate

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

“…As referred above, one of the major effects of the EALFZ technique is the control of the effective distribution coefficients, which approximate to the equilibrium coefficient values when the current is applied [29]. This field-modified segregation effect was demonstrated in perovskite-based manganese oxides (Ln 0.7 Ca 0.3 MnO 3 ) with colossal magnetoresistive (CMR) effect [121]. Indeed, the application of an electric field decreased the macrosegregation phenomenon, even at low cooling rates.…”

“…Finally, it is very important to highlight a couple of works reporting the LFZ growth of crystalline L-arginine phosphates (LAP), in essence, the production of crystalline structures of organic molecules [120,121]. Singh et al in 2008 [120] reported the production of~1-mmdiameter transparent crystalline fibers of rhodamine-6G (Rd6G)-doped L-arginine by LFZ, applying a very low laser power of 4 W at 36 mm/h growing speed over pressed rods of fully reacted precursor compounds.…”

“…Additionally, the fibers produced maintained transmission for up to four weeks, despite being stored without oil in normal laboratory conditions. A couple of years later, the same authors also produced other LAP crystalline fibers by LFZ [121]. Thus, potassium di-hydrogen phosphate (KDP)-doped L-arginine phosphate crystalline fibers were grown, applying~5.4 W with a pulling speed of 194 mm/h.…”

“…A least explored aspect of LFZ entails the possibility of producing organic complex molecules in the form of crystalline fibers [120,121]. As suggested by the results reviewed above, a wide range of opportunities to explore bio-compatible applications may be envisioned.…”