Two-Photon Spectroscopy - Revision history

Cmditradmin: /* External Links */

2011-06-16T15:26:22Z

External Links

← Older revision		Revision as of 08:26, 16 June 2011
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	=== External Links ===		=== External Links ===

	~~See also SPIE Optipedia~~ [http://spie.org/x32459.xml Mode Locking]		*[http://spie.org/x32459.xml Mode Locking SPIE Optipedia]
			*[http://www.rp-photonics.com/mode_locked_lasers.html Mode Locking- Encyclopedia of Laser Physics and Technology]

Cmditradmin at 20:01, 5 April 2011

2011-04-05T20:01:36Z

← Older revision		Revision as of 13:01, 5 April 2011
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	{{#ev:youtube\|AiWYsO5wAuc}}		{{#ev:youtube\|AiWYsO5wAuc}}

	~~===~~ TPA with well characterized beam ~~===~~		'''TPA with well characterized beam'''

	This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same. In this case the exact properties of the exciting beam are known.		This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same. In this case the exact properties of the exciting beam are known.
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	<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>		<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>

	===		=== External Links ===
	External Links ===

	See also SPIE Optipedia [http://spie.org/x32459.xml Mode Locking]		See also SPIE Optipedia [http://spie.org/x32459.xml Mode Locking]

Cmditradmin: /* TPA with well characterized beam */

2011-04-05T19:55:15Z

TPA with well characterized beam

← Older revision		Revision as of 12:55, 5 April 2011
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	=== TPA with well characterized beam ===		=== TPA with well characterized beam ===

	This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same.		This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same. In this case the exact properties of the exciting beam are known.

	<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>		<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>

Cmditradmin: /* Background */

2011-04-05T19:52:50Z

Background

← Older revision		Revision as of 12:52, 5 April 2011
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	=== Background ===		=== Background ===
	When certain materials are bombarded with very intense light they are able to able to absorb two ~~lower power~~ photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength. Typically a range of exciting wavelengths are tested and the fluorescence is measured at a specific wavelength that is characteristic for that material. The end result is a graph that shows the overall intensity of fluorescence compared to the exciting wavelength indicating that two photon absorption has occurred.		When certain materials are bombarded with very intense light they are able to able to absorb two low energy photons and enter an excited state [[Two Photon Absorption]](TPA). The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence (TPE). The sample is excited by light of one wavelength while fluorescing at a different wavelength. Typically a range of exciting wavelengths are tested and the fluorescence is measured at a specific wavelength that is characteristic for that material. The end result is a graph that shows the overall intensity of fluorescence compared to the exciting wavelength indicating that two photon absorption has occurred. From this the two photon cross section can be determined.

	~~See complete wiki article [[Two Photon Absorption]]~~

	=== Operation ===		=== Operation ===

Cmditradmin: /* Operation */

2011-04-05T19:26:36Z

Operation

← Older revision		Revision as of 12:26, 5 April 2011
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	=== Operation ===		=== Operation ===
	'''TPA with the reference sample method'''		'''TPA with the reference sample method'''
	~~{{#ev:youtube\|AiWYsO5wAuc}}~~		In the reference sample method a known sample is and a test sample are excited with the same beam. This means you don't have to characterize the beam completely, instead you compare the reference to the unknown.

			{{#ev:youtube\|AiWYsO5wAuc}}

	=== TPA with well characterized beam ===		=== TPA with well characterized beam ===

Cmditradmin: /* Background */

2011-04-05T19:10:32Z

Background

← Older revision		Revision as of 12:10, 5 April 2011
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	=== Background ===		=== Background ===
	When certain materials are bombarded with very intense light they are able to able to absorb two lower power photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength. Typically of range of exciting wavelengths are tested and the fluorescence is measured at a specific wavelength that is characteristic for that material.		When certain materials are bombarded with very intense light they are able to able to absorb two lower power photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength. Typically a range of exciting wavelengths are tested and the fluorescence is measured at a specific wavelength that is characteristic for that material. The end result is a graph that shows the overall intensity of fluorescence compared to the exciting wavelength indicating that two photon absorption has occurred.

	See complete wiki article [[Two Photon Absorption]]		See complete wiki article [[Two Photon Absorption]]

Cmditradmin: /* Background */

2011-04-05T19:00:49Z

Background

← Older revision		Revision as of 12:00, 5 April 2011
Line 7:		Line 7:

	=== Background ===		=== Background ===
	When certain materials are bombarded with very intense light they are able to able to absorb two lower power photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength.		When certain materials are bombarded with very intense light they are able to able to absorb two lower power photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength. Typically of range of exciting wavelengths are tested and the fluorescence is measured at a specific wavelength that is characteristic for that material.

	See complete wiki article [[Two Photon Absorption]]		See complete wiki article [[Two Photon Absorption]]

	=== Operation ===		=== Operation ===
	'''TPA with the reference sample method'''		'''TPA with the reference sample method'''

Cmditradmin at 18:57, 5 April 2011

2011-04-05T18:57:03Z

← Older revision		Revision as of 11:57, 5 April 2011
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	</table>		</table>

			=== Background ===
			When certain materials are bombarded with very intense light they are able to able to absorb two lower power photons and enter an excited state. The electron quickly jumps back down from the higher energy level and releases energy as light in fluorescence. The sample is excited by light of one wavelength while fluorescing at a different wavelength.

			See complete wiki article [[Two Photon Absorption]]
			=== Operation ===
			'''TPA with the reference sample method'''
			{{#ev:youtube\|AiWYsO5wAuc}}


			=== TPA with well characterized beam ===

	This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same.		This is a typical optical table setup for a two photon spectroscopic study. The particular arranged of the light path is dependent on the lab but the basic components would be the same.
	~~See complete wiki article [[Two Photon Absorption]]~~
	<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>		<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>

			===
			External Links ===

	See also SPIE Optipedia [http://spie.org/x32459.xml Mode Locking]		See also SPIE Optipedia [http://spie.org/x32459.xml Mode Locking]

128.95.39.42 at 22:16, 30 September 2009

2009-09-30T22:16:25Z

← Older revision		Revision as of 15:16, 30 September 2009
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	See also ~~optipedia~~ [http://spie.org/x32459.xml Mode Locking]		See also SPIE Optipedia [http://spie.org/x32459.xml Mode Locking]

128.95.39.42 at 22:16, 30 September 2009

2009-09-30T22:16:10Z

← Older revision		Revision as of 15:16, 30 September 2009
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	See complete wiki article [[Two Photon Absorption]]		See complete wiki article [[Two Photon Absorption]]
	<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>		<swf width= "640" height="480">http://depts.washington.edu/cmditr/media/twophotonspec.swf</swf>


			See also optipedia [http://spie.org/x32459.xml Mode Locking]