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+% graduate school requirement: less than 350 words
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+\chapter*{Abstract}
+\addcontentsline{toc}{chapter}{Abstract}
+
+Coherent multidimensional spectroscopy (CMDS) encompasses a family of experimental strategies
+involving the nonlinear interaction between electric fields and a material under investigation.  %
+This approach has several unique capabilities: 1. resolving congested states [CITE KLUG], 2.
+extracting spectra that would otherwise be selection-rule disslowed [CITE BOYLE], 3. resolving
+fully coherent dyanmics [CITE], 4. measuring coupling [CITE], and 5. resolving ultrafast dynamics
+[CITE].  %
+
+CMDS can be collected in the frequency or the time domain, and each approach has advantages and
+disadvantages.  %
+Frequency domain ``Multi-resonant'' CMDS (MR-CMDS) requires pulsed ultrafast light sources with
+tunable output frequencies.  %
+These frequency-tunable pulses are directed into a material under investigation.  %
+The pulses interact with the material, and due to the specific interference between the multiple
+fields the material is driven to emit a new pulse: the MR-CMDS signal.  %
+This new pulse may be different in frequency from the input pulses, and it may travel in a new
+direction depending on the exact experiment being performed.  %
+The MR-CMDS experiment involves tracking the intensity of this output signal as a function of
+different properties of the excitation pulses.  %
+These properties include 1. frequency 2. relative arrival time and separation (delay) 3. fluence
+[CITE Z-SCAN], and 4. polarization [CITE KLUG], among others.  %
+Thus MR-CMDS can be thought of as a multidimensional experimental space, where experiments
+typically involve explorations in one to four of the properties above.  %
+
+Because MR-CMDS is a family of related-but-separate experiments, each of them a multidimensional
+space, there are special challenges that must be addressed when designing a general-purpose MR-CMDS
+instrument.  %
+These issues require development of software, hardware, and theory.  %
+Five different improvements to MR-CMDS are presented in \hyperref[prt:development]{Part II:
+  Development}: 1. processing software (\autoref{cha:pro}), 2. acquisition software
+(\autoref{cha:aqn}) 3, active artifact correction ([REF]), 4. automated OPA calibration
+(\autoref{cha:opa}), and 5. finite pulse accountancy (\autoref{cha:mix}).  %
+\hyperref[prt:background]{Part I: Background} introduces relevant literature which informs on this
+development work.  %
+Finally, \hyperref[prt:applications]{Part III: Applications} presents three examples where these
+instruments, with these improvements, have been used to address chemical questions in
+semiconductor systems.  %
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