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Enhancement cavity

Cavity-enhanced absorption techniques are also applied in flames in the near infrared [22-25]. The multiple absorption paths provided with these techniques are the reason for their superb sensitivity in the ppb range. Absolute concentrations can be obtained, provided the absorption coefficient for the respective transition is known. CRDS can be used in conjunction with other laser-based combustion diagnostics for... [Pg.5]

Peeters, R., Berden, G., and Meijer, G., Near-infrared cavity enhanced absorption spectroscopy of hot water and OH in an oven and in flames, Appl. Phys. B, 73,65,2001. [Pg.12]

Methods of Cavity-Enhanced Laser Absorption Spectroscopy Using Microresonator Whispering-Gallery Modes... [Pg.97]

The cavity-enhanced evanescent-wave sensing method described in Sect. 5.2 and applied to gases in Sect. 5.3 can also be employed for the detection of chemicals in liquid solution. In addition, the intracavity enhancement provided by the high-g... [Pg.108]

The enhancement techniques briefly described in this section are just a few of those that can be used to make cavity-enhanced evanescent-wave chemical detection even more sensitive. The use of dielectric microresonators with tapered-fiber coupling enables performance that is difficult to achieve in other configurations, while minimizing the sensor size. [Pg.111]

Farca, G. Shopova, S. I. Rosenberger, A. T., Cavity enhanced laser absorption spectroscopy using microresonator whispering gallery modes, Opt. Express 2007, 15, 17443 17448... [Pg.120]

Farca, G., Cavity Enhanced Evanescent Wave Chemical Sensing Using Microresonators, PhD dissertation, Oklahoma State University, 2006... [Pg.122]

Freely suspended liquid droplets are characterized by their shape determined by surface tension leading to ideally spherical shape and smooth surface at the subnanometer scale. These properties suggest liquid droplets as optical resonators with extremely high quality factors, limited by material absorption. Liquid microdroplets have found a wide range of applications for cavity-enhanced spectroscopy and in analytical chemistry, where small volumes and a container-free environment is required for example for protein crystallization investigations. This chapter reviews the basic physics and technical implementations of light-matter interactions in liquid-droplet optical cavities. [Pg.471]

Symes, R. Sayer, R. M. Reid, J. P., Cavity enhanced droplet spectroscopy Principles, perspectives and prospects, Phys. Chem. Chem. Phys. 2004, 6, 474 487... [Pg.485]

Resonance Raman scattering, 21 326-327 Resonance stabilization of benzene, 3 599 Resonance theory, 20 774 Resonant cavity, 14 851 Resonant-cavity enhanced structures,... [Pg.802]

Another major application for microresonators is in development and fabrication of novel light sources such as resonant-cavity-enhanced light-emitting diodes (LEDs), low-threshold microlasers, and colour flat-panel displays. In wavelength-sized microresonator stmctures, semiconductor material luminescence can be either suppressed or enhanced, and they also enable narrowing of the spectral linewidth of the emitted light (Haroche, 1989 Yokoyama, 1992 Yamamoto, 1993 Krauss, 1999 Vahala, 2003). [Pg.54]

Clearly, to increase the enhancement factor, it is necessary to design and fabricate high-Q, small-V microresonators. However, cavity-enhanced LEDs based on the microresonators with high-Q modes must have equally narrow material spontaneous emission linewidths (Fig. 7a), which are not easily realized in bulk or heterostructure quantum-well microresonators. The recently proposed concept of an active material system, semiconductor quantum dots (QDs) (Arakawa, 2002) combines the narrow linewidth... [Pg.55]

As a result, several schemes including cavity-enhanced Raman [6], photonic crystal-enhanced Raman [7], surface-enhanced Raman [8], etc., have been put forward in an attempt to increase the electromagnetic field strength for excitation. Among them, surface-enhanced Raman scattering (SERS), by far, is one of... [Pg.2]

Because the Q is relatively low, of the order of 1000 compared with 7000 for a TE102 cavity, enhancement of both AM and FM noise originating in the oscillator is reduced as predicted by Eqns. 31-33 above. [Pg.136]

Ye J, Ma L-S and Hall J L 1996 Sub-Doppler optical frequency reference at 1,064 mm by means of ultrasensitive cavity-enhanced frequency modulation spectroscopy of a C2HD overtone transition . Opt. Lett., 21, 1000 - 2... [Pg.467]

See other pages where Enhancement cavity is mentioned: [Pg.5]    [Pg.97]    [Pg.108]    [Pg.519]    [Pg.55]    [Pg.157]    [Pg.180]    [Pg.358]    [Pg.753]    [Pg.222]    [Pg.376]    [Pg.286]    [Pg.905]    [Pg.98]    [Pg.98]    [Pg.986]    [Pg.7]    [Pg.7]    [Pg.9]    [Pg.11]    [Pg.13]   
See also in sourсe #XX -- [ Pg.180 ]

See also in sourсe #XX -- [ Pg.91 , Pg.114 ]



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Cavity-enhanced absorption

Cavity-enhanced absorption techniques

Cavity-enhanced resonant absorption

Cavity-induced enhancement

Enhancement cavity, passive

Enhancement of Absorption in External Cavities

Resonant Cavity Enhancement (RCE)

Resonant cavity enhancement

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