Direct Sensing in Liquids Using Whispering-Gallery-Mode Droplet Resonators

被引：72
作者：
Avino, Saverio [1 ]
Krause, Anika [1 ]
Zullo, Rosa [1 ]
Giorgini, Antonio [1 ]
Malara, Pietro [1 ]
De Natale, Paolo [2 ]
Loock, Hans Peter [3 ]
Gagliardi, Gianluca [1 ]
机构：
[1] CNR, INO, I-80078 Naples, Italy
[2] CNR, INO, I-50125 Florence, Italy
[3] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada
来源：
ADVANCED OPTICAL MATERIALS | 2014年 / 2卷 / 12期
关键词：
OPTICAL RESONATORS;
D O I：
10.1002/adom.201400322
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Liquid droplets suspended by the tip of a thin wire, a glass capillary, or a needle form high-Q optical resonators, thanks to surface tension. Under gravity equilibrium conditions, the maximum drop diameter is approximately 1.5 mm for paraffin oil (volume similar to 0.5 mu L) using, for instance, a silica fiber with 250 mu m thickness. Whispering gallery modes are excited by a free-space near-infrared laser that is frequency locked to the cavity resonance. The droplet cavity serves as a miniature laboratory for sensing of chemical species and particles.
引用
收藏
页码：1155 / 1159
页数：5
相关论文
共 31 条
[1]   Heavy water detection using ultra-high-Q microcavities [J].
Armani, Andrea M. ;
Vahala, Kerry J. .
OPTICS LETTERS, 2006, 31 (12) :1896-1898
[2]   Brillouin cavity optomechanics with microfluidic devices [J].
Bahl, Gaurav ;
Kim, Kyu Hyun ;
Lee, Wonsuk ;
Liu, Jing ;
Fan, Xudong ;
Carmon, Tal .
NATURE COMMUNICATIONS, 2013, 4
[3]  
Barnes J. A., 2014, CAVITY ENHANCED SPEC
[4]   Absolute absorption cross-section measurement of a submonolayer film on a silica microresonator [J].
Barnes, Jack A. ;
Gagliardi, Gianluca ;
Loock, Hans-Peter .
OPTICA, 2014, 1 (02) :75-83
[5]  
Barnes JA, 2013, PHYS REV A, V87, DOI 10.1103/PhysRevA.87.053843
[6]   Microwave sensing and heating of individual droplets in microfluidic devices [J].
Boybay, Muhammed S. ;
Jiao, Austin ;
Glawdel, Tomasz ;
Ren, Carolyn L. .
LAB ON A CHIP, 2013, 13 (19) :3840-3846
[7]   Fiber-optic add-drop device based on a silica microsphere-whispering gallery mode system [J].
Cai, M ;
Hunziker, G ;
Vahala, K .
IEEE PHOTONICS TECHNOLOGY LETTERS, 1999, 11 (06) :686-687
[8]   Active structuring of colloidal armour on liquid drops [J].
Dommersnes, Paul ;
Rozynek, Zbigniew ;
Mikkelsen, Alexander ;
Castberg, Rene ;
Kjerstad, Knut ;
Hersvik, Kjetil ;
Fossum, Jon Otto .
NATURE COMMUNICATIONS, 2013, 4
[9]   LASER PHASE AND FREQUENCY STABILIZATION USING AN OPTICAL-RESONATOR [J].
DREVER, RWP ;
HALL, JL ;
KOWALSKI, FV ;
HOUGH, J ;
FORD, GM ;
MUNLEY, AJ ;
WARD, H .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1983, 31 (02) :97-105
[10]   Fluorescence-based fibre optic arrays: a universal platform for sensing [J].
Epstein, JR ;
Walt, DR .
CHEMICAL SOCIETY REVIEWS, 2003, 32 (04) :203-214
1234