Femtosecond-laser-encoded distributed-feedback color center laser in lithium fluoride single crystals
نویسندگان
چکیده
منابع مشابه
Color center formation in soda lime glass and NaCl single crystals with femtosecond laser pulses
The high instantaneous powers associated with femtosecond lasers can color many nominally transparent materials. Although the excitations responsible for this defect formation occur on subpicosecond time scales, subsequent interactions between the resulting electronic and lattice defects complicate the evolution of color center formation and decay. These interactions must be understood in order...
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The first room temperature stable tunable color center (CC) distributed feedback (DFB) laser is described. The laser utilizes stabilized F2 +** centers in LiF (LiF:F2 ) as a gain medium. Tunable DFB lasing was achieved in the near IR region (882 962 nm) with a lasing linewidth of less than 0.2 cm. The lasing threshold was found to be 1.2 mJ, while the slope efficiency with respect to pump energ...
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Single frequency lasing from organic dye solutions on a monolithic poly(dimethylsiloxane) (PDMS) elastomer chip is demonstrated. The laser cavity consists of a single mode liquid core/PDMS cladding channel waveguide and a phase shifted 15th order distributed feedback (DFB) structure. A 1mM solution of Rhodamine 6G in a methanol and ethylene glycol mixture was used as the gain medium. Using 6 na...
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متن کاملColor center formation in soda-lime glass with femtosecond laser pulses
We show that exposure of soda-lime glass to ultrafast laser pulses at 800 nm causes coloration ~darkening!. We have characterized this coloring with time-resolved measurements of the transmission of 633 nm light through the glass during laser exposure. Reverse processes ~partial bleaching! operate on time scales of ms to seconds. The competition between coloration after the femtosecond pulse an...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2004
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.1640784