WO2007098028A3 - Photoluminescent point light source - Google Patents

Photoluminescent point light source Download PDF

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Publication number
WO2007098028A3
WO2007098028A3 PCT/US2007/004089 US2007004089W WO2007098028A3 WO 2007098028 A3 WO2007098028 A3 WO 2007098028A3 US 2007004089 W US2007004089 W US 2007004089W WO 2007098028 A3 WO2007098028 A3 WO 2007098028A3
Authority
WO
WIPO (PCT)
Prior art keywords
light source
sharp probe
point light
emission
photoluminescent
Prior art date
Application number
PCT/US2007/004089
Other languages
French (fr)
Other versions
WO2007098028A2 (en
Inventor
Valentyn Liulevych
Gang-Yu Liu
Original Assignee
Univ California
Valentyn Liulevych
Gang-Yu Liu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ California, Valentyn Liulevych, Gang-Yu Liu filed Critical Univ California
Publication of WO2007098028A2 publication Critical patent/WO2007098028A2/en
Publication of WO2007098028A3 publication Critical patent/WO2007098028A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
    • G01Q60/00—Particular types of SPM [Scanning Probe Microscopy] or microscopes; Essential components thereof
    • G01Q60/18—SNOM [Scanning Near-Field Optical Microscopy] or apparatus therefor, e.g. SNOM probes
    • G01Q60/20—Fluorescence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Semiconductor Lasers (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

One embodiment of the present invention provides a system that generates a point light source. During operation, the system illuminates a sharp probe using an excitation light, wherein the sharp probe is made of a photoluminescent (PL) material. Illuminating the sharp probe causes a PL emission from the sharp probe. This PL emission generates a point light source at the apex of the sharp probe, wherein the spot size of the point light source is restricted by the radius of curvature of the apex of the sharp probe. Another embodiment of the present invention provides a system that generates a wavelength-tunable point light source. During operation, the system coats a sharp probe with a layer of photoluminescent (PL) material. The system then illuminates the coated sharp probe using an excitation light to cause a PL emission from the coating material. The PL emission generates a point light source at the apex of the coated sharp probe, wherein the wavelength of the PL emission is tunable by varying the composition of the PL material.
PCT/US2007/004089 2006-02-17 2007-02-15 Photoluminescent point light source WO2007098028A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77475706P 2006-02-17 2006-02-17
US60/774,757 2006-02-17

Publications (2)

Publication Number Publication Date
WO2007098028A2 WO2007098028A2 (en) 2007-08-30
WO2007098028A3 true WO2007098028A3 (en) 2008-05-08

Family

ID=38437888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/004089 WO2007098028A2 (en) 2006-02-17 2007-02-15 Photoluminescent point light source

Country Status (1)

Country Link
WO (1) WO2007098028A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3392663A4 (en) * 2015-12-14 2018-12-05 Universidade Federal De Minas Gerais - UFMG Metallic device for scanning probe microscopy and method for manufacturing same
CN112964908B (en) * 2021-02-04 2022-05-20 西安交通大学 Scattering type tapered tip optical fiber probe for exciting and collecting near-field optical signals and working method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479024A (en) * 1994-08-11 1995-12-26 The Regents Of The University Of California Method and apparatus for performing near-field optical microscopy
US5770855A (en) * 1994-09-09 1998-06-23 Fischer; Ulrich Microscopic electromagnetic radiation transmitter or detector
US6265711B1 (en) * 1994-07-28 2001-07-24 General Nanotechnology L.L.C. Scanning probe microscope assembly and method for making spectrophotometric near-field optical and scanning measurements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6265711B1 (en) * 1994-07-28 2001-07-24 General Nanotechnology L.L.C. Scanning probe microscope assembly and method for making spectrophotometric near-field optical and scanning measurements
US5479024A (en) * 1994-08-11 1995-12-26 The Regents Of The University Of California Method and apparatus for performing near-field optical microscopy
US5770855A (en) * 1994-09-09 1998-06-23 Fischer; Ulrich Microscopic electromagnetic radiation transmitter or detector

Also Published As

Publication number Publication date
WO2007098028A2 (en) 2007-08-30

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