Last Updated：2025/12/29
Sentence
A
thin
ruby
crystal
is
illuminated
by
two
successive
intense
short
pulses
of
coherent
light,
t
seconds
apart,
obtained
from
a
ruby-laser
source.
As
expected,
the
crystal
will
transmit
the
two
pulses
t
seconds
apart.
But
then
one
observes
a
curious
additional
feature:
a
third
light
pulse
emerges
spontanously
from
the
crystal
about
t
seconds
following
the
second
pulse,
and
still
relatively
intense.
Quizzes for review
A thin ruby crystal is illuminated by two successive intense short pulses of coherent light, t seconds apart, obtained from a ruby-laser source. As expected, the crystal will transmit the two pulses t seconds apart. But then one observes a curious additional feature: a third light pulse emerges spontanously from the crystal about t seconds following the second pulse, and still relatively intense.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
