A high-power ytterbium-doped calcium fluoride laser system is disclosed herein which includes at least one pump source, at least one laser cavity formed by at least one high reflector and at least one output coupler, and at least one ytterbium-doped calcium fluoride optical crystal positioned within the laser cavity in communication with the pump source, the ytterbium-doped calcium fluoride optical crystal configured to output at least one output signal of at least 20 W, having a pulse width of 200 fs or less, and a repetition rate of at least 40 MHz.

NEWPORT CORPORATION

Newport corporation

High-power ytterbium doped calcium fluoride mode-locked laser and methods of use

This invention relates to the use of novel glass materials comprising rare earth aluminate glasses (REA1.TM. glasses) in the gain medium of solid state laser devices that produce light at infrared wavelengths, typically in the range 1000 to 3000 nm and for infrared optics with transmission to approximately 5000 nm in thin sections. The novel glass materials provide stable hosts for trivalent ytterbium (Yb.sup.3+) ions and other optically active species or combinations of optically active species that exhibit fluorescence and that can be optically excited by the application of light. The glass gain medium can be configured as a waveguide or placed in an external laser cavity, or otherwise arranged to achieve gain in the laser waveband and so produce laser action.

3M Innovative Properties Company

Glass materials for optical gain media and infrared optics comprising rare earth oxide glass compositions

Methods for fabricating integrated circuits are provided. One method includes forming first and second FET trenches in an interlayer dielectric material on a semiconductor substrate. The first FET trench is partially filled with a first work function metal to define an inner cavity in the first FET trench. The first work function metal is a N-type work function metal or a P-type work function metal. The N-type work function metal is selected from the group consisting of titanium, tantalum, hafnium, ytterbium silicide, erbium silicide, and titanium silicide. The P-type work function metal is selected from the group consisting of cobalt, nickel, and tungsten silicide. The inner cavity and the second FET trench are filled with a second work function metal to form corresponding metal gate structures. The second work function metal is the other of the N-type work function metal or the P-type work function metal.

ytterbium/carie dentară

High-power ytterbium doped calcium fluoride mode-locked laser and methods of use

Glass materials for optical gain media and infrared optics comprising rare earth oxide glass compositions

Methods for fabricating integrated circuits having improved metal gate structures

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