What are these kind of beam weapons used by Ghoul Investigators like Kishou Arima, or Mougan Tanakamaru? Are they based on Ghouls like Quinques or are they something completely different?
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By the looks of the first image, it must be Narukami:
Narukami (ナルカミ, Narukami) is an ukaku-type quinque. It discharges condensed Rc cells just like lightning bolts. Possessing a tracking function, evasion of the bolts is next to impossible.
And for the second image, it is the Higher Mind:
Higher Mind (ハイアーマインド（高次精神次元）, Haiā Maindo) or Angel Beat (天使の羽ばたき（エンジェルビート）, Enjeru Bīto) is an ukaku-type quinque that shoots beams of concentrated energy or condensed Rc cells.
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I think, it is important to mention, that some ghouls posses kagune capable of unique feats, such as generating electricity, and thus, such quinques can be created from them. – lentinant Jul 25 '18 at 8:28
