perplexus.info :: Science : Ultrashort colour

Ultrashort colour (Posted on 2006-10-06)

Recently physicists have managed to build "attosecond lasers", lasers which emit pulses 10^-18 seconds long, interrupted by much longer periods of darkness (at least 10^-14 seconds). Before them, lasers emitting femtosecond (10^-15 seconds) pulses have been around. Assuming they produce visible light, what colour is it?

See The Solution Submitted by vswitchs

Rating: 3.7500 (4 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-04-25 21:35:21
re: Question about solution	gregg	2006-11-17 04:13:21
Question about solution	gregg	2006-11-16 02:24:12
not that simple	jake	2006-11-15 12:41:11
re: Spoiler	gregg	2006-10-19 03:26:20
Spoiler	gregg	2006-10-19 01:37:19
re: Hint	gregg	2006-10-18 04:37:52
Hint	vswitchs	2006-10-15 06:43:08
re(4): I see - I think	gregg	2006-10-14 01:37:52
re(3): I see - I think	Larry	2006-10-12 20:49:55
re(3): I see - I think	vswitchs	2006-10-12 02:30:53
re(2): I see - I think	gregg	2006-10-12 01:06:36
half square	Larry	2006-10-06 18:04:03
re: I see - I think	vswitchs	2006-10-06 14:41:05
I see - I think	Leming	2006-10-06 12:24:59

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