Method of Spectroscopy

A method of spectroscopy having a controllable excitation source parameter, comprising controlling said controllable parameter to excite a vibrational mode of the sample, generating an output signal and further comprising enhancing the output signal by controlling a controllable parameter to excite an electronic mode of the sample and obtaining a vibrational spectrum of the sample.

A method of multidimensional spectroscopy comprising depositing a sample on a substrate, allowing it to dry, controlling a controllable parameter to excite a vibrational or electronic mode of a sample and obtaining a spectrum of the sample.

A spectroscopy apparatus comprising an excitation source arranged so as to excite a vibrational mode of a sample, generate a homodyne reflected signal from the sample and obtain a spectrum of the sample from the homodyne reflected signal.

A spectroscopy apparatus comprising an excitation source arranged so as to excite a vibrational mode of a sample and generate an output signal and comprising a further excitation source arranged so as to excite an electronic mode of the sample and enhance the output signal, obtaining a spectrum of the sample.

A spectroscopy apparatus comprising a sample deposited on a substrate and an excitation source arranged so as to excite a vibrational or electronic mode of the sample and obtain a spectrum of the sample.

A method of multi dimensional spectroscopy having a controllable excitation source parameter, comprising controlling said controllable parameter to excite a vibrational mode of the sample, generating a reflected signal from the sample and obtaining a spectrum of the sample from the reflected signal.

A spectroscopy apparatus comprising an excitation source arranged so as to excite a vibrational mode of a sample, generate a reflected signal from the sample and obtain a spectrum of the sample from the reflected signal.