Laser diffractometer for single-particle scattering measurements

被引：21

作者：

Ulanowski, Z ^{[1
]}

Greenaway, RS ^{[1
]}

Kaye, PH ^{[1
]}

Ludlow, IK ^{[1
]}

机构：

[1] Univ Hertfordshire, Dept Phys Sci, Hatfield AL10 9AB, Herts, England

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2002年 / 13卷 / 03期

关键词：

light scattering; single particle; laser diffractometry; optical trapping; levitation; refractive index; cell; spore; water content;

D O I：

10.1088/0957-0233/13/3/309

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A laser diffractometer (polar nephelometer) constructed for single-particle studies is described. It takes advantage of an array of optical fibres and a scanning disc to allow the use of a single photomultiplier tube for the detection of scattered light. A background subtraction scheme makes the instrument especially valuable in cases where background scattering exceeds the scattering from the observed particle, for example for living cells in aqueous media. The system can be easily integrated with particle trapping equipment such as laser tweezers or an electrodynamic balance.

引用

页码：292 / 296

页数：5

共 16 条

[1] Bacon NJ, 2000, J ATMOS SCI, V57, P2094, DOI 10.1175/1520-0469(2000)057<2094:LMOLSB>2.0.CO
[2] 2
[3] Polar nephelometer for light-scattering measurements of ice crystals
Barkey, B
Liou, KN
[J]. OPTICS LETTERS, 2001, 26 (04) : 232 - 234
[4] A TIME-RESOLVED LIGHT-SCATTERING PHOTOMETER
CHU, B
ZHOU, Z
MOSER, HO
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (05) : 2954 - 2957
[5] Chu B., 1991, LASER LIGHT SCATTERI, V2nd
[6] Elastic light-scattering measurements of single biological cells in an optical trap
Doornbos, RMP
Schaeffer, M
Hoekstra, AG
Sloot, PMA
deGrooth, BG
Greve, J
[J]. APPLIED OPTICS, 1996, 35 (04): : 729 - 734
[7] Stability characteristics of cylindrical fibres in an electrodynamic balance designed for single particle investigation
Hesse, E
Ulanowski, Z
Kaye, PH
[J]. JOURNAL OF AEROSOL SCIENCE, 2002, 33 (01) : 149 - 163
[8] HESSE E, 2002, 6 INT C EL LIGHT SCA
[9] KAYE PH, 1979, J PHYS E SCI INSTRUM, V12, P690, DOI 10.1088/0022-3735/12/8/009
[10] SCANNING DIFFRACTOMETER FOR THE RAPID ANALYSIS OF MICROPARTICLES AND BIOLOGICAL CELLS
LUDLOW, IK
KAYE, PH
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1979, 69 (03) : 571 - 589

← 1 2 →