| 41. | At each point the transmitted X-rays are recorded with a detector such as a proportional counter or an avalanche photodiode.
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| 42. | Fifteen years later in 1998, this structure was further developed and named the UTC, or uni-travelling carrier photodiode.
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| 43. | This beat signal, detectable with a photodiode, includes a difference frequency component, which is the carrier envelope offset frequency.
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| 44. | This development was spurred by the discovery of Indium gallium arsenide and the development of the Indium Gallium Arsenide photodiode by Pearsall.
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| 45. | Typical transmission of the probe beam as recorded on the photodiode for Rubidium 85 as a function of the laser's wavelength
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| 46. | Due to photodiode noise, the laser frequency can be swept across the transition and the photodiode reading averaged over many sweeps.
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| 47. | Due to photodiode noise, the laser frequency can be swept across the transition and the photodiode reading averaged over many sweeps.
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| 48. | Opto-isolators use an LED combined with a photodiode or phototransistor to provide a signal path with electrical isolation between two circuits.
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| 49. | Various detectors are in common use, such as UV / Vis, photodiode array ( PDA ) or based on mass spectrometry.
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| 50. | When the photodiode is reverse-biased with an external voltage source, incoming light increases the reverse current flowing through the diode.
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