Bonus

This technique can be used to generate time holes that are used to hide events from an observer in temporal cloaking. For 10 points each:
[10h] Name this technique that is often used to study processes on attosecond timescales. To prevent destruction of the gain medium or to stop signal distortion, this technique dispersively stretches the input before dispersively compressing it, unlike more direct counterparts.
ANSWER: chirped pulse amplification [prompt on CPA; prompt on partial answers]
[10e] Chirped pulse amplification is used to increase the power output by these devices, which produce radiation by stimulated emission.
ANSWER: lasers [or light amplification by stimulated emission of radiation]
[10m] Unlike laser gain media, parametric amplification relies on optical effects caused by higher-order components of this quantity. This quantity equals relative permittivity minus one.
ANSWER: electric susceptibility [accept electric susceptibility tensor; prompt on chi-sub-e; reject “magnetic susceptibility”; reject “magnetic susceptibility tensor”]
<Physics>
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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Chicago AToronto A10101030HEM
Columbia AIllinois A0101020EM
Cornell AChicago B0101020EM
FloridaWaterloo B010010E
Illinois BColumbia B0101020EM
Iowa StateJohns Hopkins010010E
LSEGeorgia State010010E
MITTexas0101020EM
MarylandVirginia010010E
MichiganNorth Carolina B010010E
MinnesotaGeorgia Tech010010E
NYUBritish Columbia1010020HE
North Carolina ANorthwestern1010020HE
Ohio StateCornell B010010E
Penn StateOttawa010010E
RutgersWaterloo A0101020EM
Toronto CToronto B1010020HE
UC Berkeley AIndiana1010020HE
UC Berkeley BYale010010E
UCFVanderbilt0101020EM
Virginia TechHarvard0101020EM
WUSTL AStanford0101020EM
WUSTL BArizona State0101020EM
Winona StateRIT010010E

Summary

TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2416.25100%42%21%