phosphorescence; afterglow
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
phosphorescence; the phenomenon where certain substances continue to emit light after the excitation source is removed
In physics, distinct from fluorescence (荧光): phosphorescence involves delayed emission (afterglow) that persists after the excitation stops, whereas fluorescence ceases immediately when the excitation source is removed. Common in minerals like calcite, fluorite, and diamond.
Zuàn钻
shí石
jīng经
rì日
guāng光
zhào照
shè射
hòu后
，
zài在
àn暗
chù处
huì会
fā发
chū出
qīng青
lǜ绿
sè色
de的
lín磷
guāng光
。
After being irradiated by sunlight, diamonds emit a blue-green phosphorescence in the dark.
Zhè这
zhǒng种
xīn新
xíng型
lín磷
guāng光
cái材
liào料
kě可
yǐ以
zài在
hēi黑
àn暗
zhōng中
fā发
guāng光
shí十
jǐ几
gè个
xiǎo小
shí时
。
This new phosphorescent material can glow for more than ten hours in the dark.
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Fāng方
jiě解
shí石
hé和
yíng萤
shí石
dōu都
jù具
yǒu有
míng明
xiǎn显
de的
lín磷
guāng光
xiào效
yìng应
。
Both calcite and fluorite exhibit obvious phosphorescence effects.