Hãy nhìn bức ảnh này và trả lời câu hỏi
“Is the glass half empty or half full?” Câu
trả lời sẽ giúp xác định bạn là người lạc quan, có suy
nghĩ tích cực hay là người bi quan, luôn nhìn mọi
chuyện một cách tiêu cực.
I’m in Massachusetts to offer a workshop to women on self-care and selfnurturing.
I almost turned down the event because I felt so disembodied
from the material I have been talking and writing about for nine years. I’m
cavernous inside, a ramshackle soul. The only way I nurture myself these
days is by eating chocolate and whining, and even those are failing me.
The wavelength shift effect of the Whispering Gallery Mode (WGM) laser with Er3+ /Yb3+ co-doped phosphate glass microsphere has been investigated. The experiment was carried out by half fiber taper coupling technique. The microsphere lasers have been pumped at 980 nm to take full advantage of energy transfer effect from ion Ytterbium to ion Erbium. The WGM’s wavelength shift were analyzed for sphere diameters of 90 µm. The observed lasing lines extends from 1532 nm to 1611 nm.