Surface plasmon resonance imaging apparatus and method

A surface plasmon resonance imaging apparatus comprising:

• a light irradiator irradiating polarized light onto a metal coating film provided on one surface of a prism;
• a light modulator spatially pattern encoding light reflected by the metal coating film and the prism;
• a light detector configured to detect a pattern-encoded light signal, obtained through the pattern-encoding by the light modulator, as a spectral signal;
• a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film;
• and
• an output circuit configured to output the characteristic data of the sample as a two-dimensional (2D) image,
• wherein the light modulator pattern-encodes the reflected light as a 2D pattern, and
• wherein the 2D pattern comprises a random pattern, a structured pattern, a Fourier pattern, and a Hadamard pattern.