query: LASERS: How do we get all the emitted photons of equal wavelength & equal phase?
positive_passages.docid: 144461
positive_passages.text: Why is the photon emitted in the same direction as incoming radiation in Laser?
negative_passages.docid: 120746
negative_passages.text: How exactly does applying the Equipartition Theorem to radiation leads to UV catastrophe?
negative_passages.docid: 77578
negative_passages.text: How to get the accurate relativistic momentum form for photons?
negative_passages.docid: 109743
negative_passages.text: Is a single photon always circularly polarized?
negative_passages.docid: 75308
negative_passages.text: Does there exist a laser that is tunable over the whole visible spectrum?
negative_passages.docid: 121321
negative_passages.text: Lasing in a 2-Level system?
negative_passages.docid: 36202
negative_passages.text: Particle Color based on where the particle is emitted?
negative_passages.docid: 29807
negative_passages.text: Do interference rings disappear in an interferometer if the path lengths are identical?
negative_passages.docid: 38797
negative_passages.text: Why don't waves with different wavelengths interfere with each other in white-light?
negative_passages.docid: 41016
negative_passages.text: Principle of Reflection on atomic level
negative_passages.docid: 118021
negative_passages.text: How do you "store" a photon?
negative_passages.docid: 88577
negative_passages.text: How is light produced?
negative_passages.docid: 157497
negative_passages.text: During reflection does the emitted photon have same properties?
negative_passages.docid: 116871
negative_passages.text: Do photons take all paths or not?
negative_passages.docid: 155316
negative_passages.text: Are two waves out of phase only when the phase difference is $\pi$?
negative_passages.docid: 22399
negative_passages.text: How to achieve a solid glass/emission material with certain refraction and color
negative_passages.docid: 62670
negative_passages.text: How can a green laser be reflected as orange?