公开(公告)号：JPH1062347A

公开(公告)日：1998-03-06

申请号：JP21620796

申请日：1996-08-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TANI TOSHIAKI ,  KOMURO MASANORI ,  ITO JUNJI ,  MAACHIN BATSUHA

IPC: G01N21/64 ,  G01N21/01 ,  G01N21/03

Abstract: PROBLEM TO BE SOLVED: To provide an extremely small-sized single molecular fine optical device which is easily and stably operable with hardly having a regulating part, and enhance the converging efficiency o/f signal light to realize the accumulation of necessary functions basically with one optical element. SOLUTION: An excited light is emitted to a sample through a cover glass 4, and the signal light from the sample is taken as parallel beams through a rod type lens 1 and sent to a light detector. Tungsten is evaporated on one end surface of the rod type lens 1 (pitch 0,.25) as a thin film 2 of 0.5μm thick, an aperture about 4μm in diameter is formed in the center of the thin film by use of focused ion beam method using divalent gold ion, the cover glass 4 of 0.15μmm thick is put on the aperture to form a sample space 3, and the sample is put in the sample space 3, whereby a single molecular spectrometric device is constituted. When a single mode pigment laser in the wavelength range of 570nm is used as an excitation light source, and the wavelength is scanned to measure the excited spectrum, a single spectrum is provided.