Raman spectroscopy systems include an analyte, a radiation source
configured to emit incident radiation having a wavelength, and a detector
that is capable of detecting only radiation having wavelengths within a
detectable range that includes at least one wavelength corresponding to
hyper Raman scattered radiation scattered by the analyte. The wavelength
of the incident radiation is outside the detectable range. In particular
systems, all wavelengths of radiation that are scattered in the direction
of the detector impinge on the detector. Raman spectroscopy methods
include providing an analyte and irradiating the analyte with incident
radiation having a wavelength, providing a detector capable of detecting
only wavelengths of radiation within a detectable range that does not
include the wavelength of the incident radiation, and detecting Raman
scattered radiation scattered by the analyte. A continuous path free of
radiation filters may be provided between the analyte and the detector.