PROBLEM TO BE SOLVED: To provide an in-medium spectroscopic analyzer capable of performing in-medium spectroscopic analysis even in an environment having high radiation therein.;SOLUTION: An in-medium spectroscopic analyzer includes an optical fiber 5a for transferring pump light to an object 8 in a water medium 7, a pump light source 2a for outputting, to the optical fiber, pump light of 808 nm (first wavelength range) having little deterioration of the optical fiber caused by a near-infrared ray and a radiation, a microchip laser 9 arranged on the tip of the optical fiber and on the periphery of the object, for generating and emitting to the object, a laser beam of 532 nm (second wavelength range) in which an absorptivity of the water medium is smaller than the absorptivity of the water medium in the first wavelength range by the pump light from the optical fiber, and a spectroscope 4 for performing mass analysis of the object based on light generated from the object.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
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