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Pulsed cavity ringdown spectroscopy ...

Marcus, George Alexander.

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Pulsed cavity ringdown spectroscopy of thin films and ultrafast thermalization in corneal stroma.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Pulsed cavity ringdown spectroscopy of thin films and ultrafast thermalization in corneal stroma./
作者:	Marcus, George Alexander.
面頁冊數:	140 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0342.
Contained By:	Dissertation Abstracts International66-01B.
標題:	Physics, Optics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3162307
ISBN:	9780496959990

Pulsed cavity ringdown spectroscopy of thin films and ultrafast thermalization in corneal stroma.
Marcus, George Alexander.

Pulsed cavity ringdown spectroscopy of thin films and ultrafast thermalization in corneal stroma. - 140 p.

Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0342.

Thesis (Ph.D.)--Stanford University, 2005.

The mid-IR spectral region is of great spectroscopic interest as it corresponds to the energy scales associated with vibrational absorption resonances in molecules. Using the ultrafast mid-IR laser sources at the Stanford Picosecond Free Electron Laser Center, we have pursued two distinct research projects. In one project, we have extended the techniques of cavity ringdown spectroscopy (CRDS), an ultrasensitive linear absorption spectroscopy technique, to the study of condensed matter systems, in the form of thin films. We have compared two different approaches to thin-film CRDS: normal incidence coupled-cavity CRDS and Brewster's angle CRDS. Additionally, we demonstrated the viability of thin film CRDS as a calibrated ultrasensitve absorption measurement technique. In order to overcome the absorption sensitivity limitations imposed by poor optical throughput in CRDS, we have developed and demonstrated two throughput enhancement techniques, cavity-enhancement and pulse-stacking.

ISBN: 9780496959990Subjects--Topical Terms:

1018756
Physics, Optics.

Pulsed cavity ringdown spectroscopy of thin films and ultrafast thermalization in corneal stroma.
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502 $a Thesis (Ph.D.)--Stanford University, 2005.
520 $a The mid-IR spectral region is of great spectroscopic interest as it corresponds to the energy scales associated with vibrational absorption resonances in molecules. Using the ultrafast mid-IR laser sources at the Stanford Picosecond Free Electron Laser Center, we have pursued two distinct research projects. In one project, we have extended the techniques of cavity ringdown spectroscopy (CRDS), an ultrasensitive linear absorption spectroscopy technique, to the study of condensed matter systems, in the form of thin films. We have compared two different approaches to thin-film CRDS: normal incidence coupled-cavity CRDS and Brewster's angle CRDS. Additionally, we demonstrated the viability of thin film CRDS as a calibrated ultrasensitve absorption measurement technique. In order to overcome the absorption sensitivity limitations imposed by poor optical throughput in CRDS, we have developed and demonstrated two throughput enhancement techniques, cavity-enhancement and pulse-stacking.
520 $a In the second project, we have developed a two-color mid-IR pump mid-IR probe technique for studying ultrafast temperature changes in the components of biological tissue. We have made measurements that establish the use of transient absorption as an ultrafast thermometer in both water and protein. We have used this method to measure the thermalization between the constituents of corneal stroma in order to examine the assumptions underlying the differential heating model of pulsed mid-IR ablation of soft tissue.
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