Lasers can also have higher temporal coherence, which permits them to emit mild with an extremely narrow frequency spectrum. Temporal coherence can also be applied to generate ultrashort pulses of light using a broad spectrum but durations as brief being an attosecond.[seven] วิทยาการคอมพิวเตอร์และเทคโนโลยีดิจิทัล This method is termed spontaneous emission. Spontaneous https://agnesx741gij0.wikihearsay.com/user