Active resonators

Ar-Cl), as compared to their reactivities with an anionic nucleophile. The reaction of 108 with trimethylamine at the pam-posi-tion contrasts with that of 2,4-dichloronitrobenzene which reacts with a large variety of nucleophiles at the oriA.o-position. Compared to the (2,6-dinitrophenyl)trimethylammonium ion, steric hindrance to activating resonance would be much less in 2-trimethyl-ammoniopyrimidine. 

For compounds that require metabolic activation, resonance stabilization of the electrophilic metabolites is important. This is because resonance stabilization... 

Accordingly, for a given Raman-active resonance r, the amplitudes of XijM can be expressed in terms of the isotropy and symmetric anisotropy invariants of the corresponding spontaneous Raman scattering tensor, a2 and 7S2, respectively. In the case of frequency-degenerate CRS considered here, the two relevant independent tensor components assume the following form [33, 34] ... 

A homogeneous and sensitive HTRF binding assay was developed to allow prosecution of an HTS campaign for novel small molecule Hsp90 inhibitors. The HTRF assay was based on a non-radio-active resonance energy transfer between a donor label (europium chelate) and an acceptor label (allophycocyanin [APC]) brought into close proximity by a specific binding interaction. 

We obtain the frequencies of the active resonator by replacing the mirror separation d in (5.52) by... 

Fig. 5.21. Transmission of an incident wave through an active resonator...

From (5.59) we obtain for the halfwidth Av of the resonances for an active resonator with a free spectral range the expression... 

In Sect. 5.3 we saw that the wavelength A or the frequency u of a longitudinal mode in the active resonator is determined by the mirror separation d and the refractive indices n2 of the active medium with length L and n outside the amplifying region. The resonance condition is... 

Intracavity absorption cells are particularly advantageous if the absorption is monitored via the laser-induced fluorescence. Since the radiation field inside the active resonator or inside the mode-matched passive cavity is concentrated... 

Yannick Dumeige, tephane Trebaol, and Patrice Feron. Intracavity coupled-active-resonator-induced dispersion. Physical Review A 2009 Jan 30 79(1) 013832(10). 

An always activating resonance effect in which lone pairs on atoms bonded to the ring create an extra contributing structure when they are ortho or para to the incoming electrophile. The added resonance stabilizes the cation intermediate by further distributing its positive charge over the molecule. 

Introducing the amplifying medium into the resonator changes the refractive index between the mirrors and with it the eigenfrequencies of the resonator. We obtain the frequencies of the active resonator by replacing the mirror separation d in (5.52) by... 

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