Negligible
发表于 2025-3-30 10:23:41
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束缚
发表于 2025-3-30 14:11:40
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Decline
发表于 2025-3-30 16:32:57
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思考而得
发表于 2025-3-31 00:36:59
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Foolproof
发表于 2025-3-31 00:55:25
Self-transparency and Localization in Gratings with Quadratic Nonlinearityy is commonly employed to achieve phase-matching of frequency conversion process, by means of so called quasi-phase-matching (QPM) techniques , recently extended in planar (2D) geometry . On the other hand also periodic variations of linear properties over submicron scale has been introduc
改正
发表于 2025-3-31 08:40:38
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