公开(公告)号：WO2005119728A2

公开(公告)日：2005-12-15

申请号：PCT/GB2005002240

申请日：2005-06-06

Applicant: COUNCIL CENT LAB RES COUNCILS ,  MATOUSEK PAVEL ,  PARKER ANTHONY WILLIAM

Inventor： MATOUSEK PAVEL ,  PARKER ANTHONY WILLIAM

IPC: G01Q10/00 ,  G01Q30/02 ,  G01Q60/10 ,  G01Q60/12 ,  G01Q60/16 ,  G01Q70/12 ,  G01Q80/00 ,  G11B9/00 ,  G11B9/10 ,  H01J3/02 ,  H01J31/00 ,  H01J37/073

CPC classification number: G01Q30/02 ,  G01Q60/16 ,  G01Q70/12 ,  G01Q80/00 ,  G11B9/10 ,  G11B9/14 ,  H01J37/073 ,  H01J2237/06333

Abstract: A scanning tunneling microscope tip is used to direct a rapidly switched stream of electrons at a target surface by applying an electrical bias which brings the tip close to the auto-emission threshold, and then using a pulsed laser source directed at the tip to trigger emission. Applications include high time and space resolution spectroscopy, and data recording apparatus.

Abstract translation: 扫描隧道显微镜尖端用于通过施加使尖端接近自发射阈值的电偏压来引导目标表面处的快速切换的电子流，然后使用指向尖端的脉冲激光源来触发发射 。 应用包括高分辨率时空分辨率和数据记录装置。

公开(公告)号：GB2447497A

公开(公告)日：2008-09-17

申请号：GB0705031

申请日：2007-03-15

Applicant: COUNCIL CENT LAB RES COUNCILS ,  STFC SCIENCE & TECHNOLOGY

Inventor： MATOUSEK PAVEL

IPC: G02B5/26 ,  G01J3/44 ,  G01N21/65

Abstract: The invention provides a technique for increasing the illumination intensity of probe light in a diffusely scattering sample 10 without increasing the power of the probe beam. Generally, an optical filter 30 is used which permits a collimated probe beam of light 14 to pass through to the sample, but which reflects back towards the sample much of the backscattered scattered probe light emerging at a wider range of angles. In particular embodiments a collimated laser beam is delivered to the sample through a multilayer dielectric filter covering a portion of the sample. The filter is transmissive to the laser light at normal incidence, but reflective at shallower angles of incidence characteristic of the backscattered light.

公开(公告)号：GB2432661A

公开(公告)日：2007-05-30

申请号：GB0618635

申请日：2006-09-21

Applicant: COUNCIL CENT LAB RES COUNCILS

Inventor： MATOUSEK PAVEL ,  PARKER ANTHONY WILLIAM

IPC: G01N21/65 ,  G01N33/22

Abstract: Method and apparatus for screening objects using Raman scattering to detect the presence of predefined substances or classes of substances, which may be hazardous, toxic or explosive. Radiation, e.g. light generated by a laser 14, is supplied to an incident region 11 of an object 10. Scattered radiation is collected from a collection region 13 on the surface of the object. spaced from the incident region. The characteristics of the scattered radiation include Raman features related to the predefined substances. The Raman features allow the presence or absence of the predefined substances to be determined. The object may be a package or envelope sent via the postal services. Alternatively, the apparatus may be used to identify hazardous substances carried under clothing by a person.