A method of increasing the fluorous nature of a compound includes the step of reacting the compound with at least one second compound having the formula: . When a film carrier is mounted in an image reading apparatus main body, a control section reads the identification number of the film carrier from an EEPROM, and determines whether the identification number corresponds to any of the identification numbers stored in a RAM. Embedding the capacitiveresistive device conserves board surface real estate, and reduces the number of solder connections, thereby increasing reliability. The first pump source produces a first pump beam that travels in a downstream direction and is counter-propagating relative to the signal.