An on-chip liquid tunable grating using multiphase droplet microfluidics

被引：28

作者：

Chin, L. K. ^{[1
]}

Liu, A. Q. ^{[1
]}

Zhang, J. B. ^{[2
]}

Lim, C. S. ^{[3
]}

Soh, Y. C. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Data Storage Inst, Singapore 117608, Singapore

[3] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 16期

关键词：

D O I：

10.1063/1.3009560

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter reports the realization of liquid tunable long-period grating (LPG) using multiphase droplet microfluidics that is integrated onto a microfluidic chip. A stream of plugs is formed by two immiscible liquids and acted as LPG. It provides the tunability in the grating period by tuning the flow rates of the liquids, the refractive index and the index variation of the core layer by using different combinations of liquids. The experimental results show attenuation strength of 0.14 and attenuation bandwidth of 7.6 nm. The chip is promising as a sensor for biochemical applications and a tunable filter for optical measurement. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3009560]

引用

页数：3

共 13 条

[1]

Optical fiber long-period grating sensors [J].

Bhatia, V ;

Vengsarkar, AM .

OPTICS LETTERS, 1996, 21 (09) :692-694

[2]

A monolithic PDMS waveguide system fabricated using soft-lithography techniques [J].

Chang-Yen, DA ;

Eich, RK ;

Gale, BK .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2005, 23 (06) :2088-2093

[3]

Differential single living cell refractometry using grating resonant cavity with optical trap [J].

Chin, L. K. ;

Liu, A. Q. ;

Lim, C. S. ;

Zhang, X. M. ;

Ng, J. H. ;

Hao, J. Z. ;

Takahashi, S. .

APPLIED PHYSICS LETTERS, 2007, 91 (24)

[4]

Two-phase flow in microchannels with surface modifications [J].

Cubaud, Thomas ;

Ulmanella, Umberto ;

Ho, Chih-Ming .

FLUID DYNAMICS RESEARCH, 2006, 38 (11) :772-786

[5]

Fiber grating spectra [J].

Erdogan, T .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1997, 15 (08) :1277-1294

[6]

Formation of droplets and bubbles in a microfluidic T-junction - scaling and mechanism of break-up [J].

Garstecki, P ;

Fuerstman, MJ ;

Stone, HA ;

Whitesides, GM .

LAB ON A CHIP, 2006, 6 (03) :437-446

[7]

Flowing lattices of bubbles as tunable, self-assembled diffraction gratings [J].

Hashimoto, Michinao ;

Mayers, Brian ;

Garstecki, Piotr ;

Whitesides, George M. .

SMALL, 2006, 2 (11) :1292-1298

[8]

Label-free detection with micro optical fluidic systems (MOFS): a review [J].

Liu, A. Q. ;

Huang, H. J. ;

Chin, L. K. ;

Yu, Y. F. ;

Li, X. C. .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2008, 391 (07) :2443-2452

[9]

Dual resonance in a long-period waveguide grating [J].

Liu, Q. ;

Chiang, K. S. ;

Lor, K. P. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2007, 86 (01) :147-150

[10]

Tunable microfluidic optical fiber [J].

Mach, P ;

Dolinski, M ;

Baldwin, KW ;

Rogers, JA ;

Kerbage, C ;

Windeler, RS ;

Eggleton, BJ .

APPLIED PHYSICS LETTERS, 2002, 80 (23) :4294-4296

← 1 2 →