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We report on an efficient Er3+‐doped Lu1.5Y1.5Al5O12 (Er:LuYAG) laser operating at either 1648 or 1620 nm depending on the transmission of output coupling mirror. By using a high‐power Er,Yb‐doped fiber laser wavelength‐locked at 1532 nm as the pump source and an output coupler of 10% transmission, the laser yielded 5.2 W of continuous‐wave output power at 1648 nm under 13 W of incident pump power,...
From semiconductor quantum well structures to the currently hottest metamaterials, the conquest of nano-world has been occurring in almost every field of research. In the field of quantum well structures for infrared photodetection, the inclusion of dilute nitride layers in the mature GaAs based quantum well structures results in a TE dominate photocurrent and the incorporation of nitrogen in the...
Absorption, photoluminescence spectra and CW lasing parameters of an Yb3+- and Na+-codoped CaF2 laser crystal are measured in the temperature range from 5 K to 290 K. The crystal appears to be a promising host for broadband multi-mJ kHz CW-pumped regenerative amplification.
We present a method for introducing light transmittance properties to polycrystalline oxide ceramics traditionally thought of as being structural ceramics, in effect producing multifunctional materials. Partially (ZrO 2 –3mol.% Y 2 O 3 ) and fully stabilized (ZrO 2 –8mol.% Y 2 O 3 ) nanostructured powders were densified using a current activated technique...
Photonic crystal microcavities (PCM) have the ability to control and modify the spontaneous emission from quantum dots embedded inside. These devices have several applications one of which is their potential to realize single photon sources. Typically semiconductor quantum dots are grown embedded as a thin layer in a semiconductor-based heterostructure such as GaAs and then a PCM is fabricated into...
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