| 41. | The effective ionizing path length ( L ) can be increased by using a weak magnetic field.
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| 42. | The optical path length is a purely geometrical quantity since time is not considered in its calculation.
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| 43. | In order for interference to occur, the path length difference must be smaller than the coherence length.
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| 44. | This in turn shifts the band edge and changes the optical path length in the lasing cavity.
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| 45. | In radio astronomy the air mass ( which influences the optical path length ) is not relevant.
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| 46. | When the scattered radiation is visible light, it is conventional to measure the path length in centimetres.
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| 47. | The constriction limits the path length.
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| 48. | The expression for the optical path length can also be written as a function of the optical momentum.
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| 49. | The unconditional branch is slightly faster than a compare instruction, as well as reducing the overall path length.
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| 50. | The gradient theorem can then be applied to the optical path length ( as given above ) resulting in
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