Device for the exalted detection of the emission of a target particle

A method for detecting the emission of a target particle (6) at an emission wavelength including steps consisting in:

• providing a device comprising:
• a photo-detector (2, 2A, 2B) comprising a sensitive detection surface having a high optical index;
• said target particle (6) can be positioned in the vicinity of said sensitive surface in an analysis medium (13) having a low optical index
• said device being characterised in that it further comprises:
• a mask (3) covering said sensitive surface;
• said mask including at least one area (4) opaque at said emission wavelength and at least one hole (5);
• said hole being capable of receiving said tar, et particle,
• and in that:
• said mask includes at least one interlace and said device comprises at least one groove (10, 10A, 10B), provided at said interface, each of said at least one groove surrounding each of said at least one hole;
• positioning said particle into said at least one hole;
• detecting the emission of said particle using said photo-detector.