Multiphoton optical rotary dispersion

Abstract

An experimental setup for the measurements of multiphoton optical rotary dispersion is described. It is demonstrated that the effect is measurable and amenable to experimental observation. The experiments were carried out on 10% aqueous solutions of (+)−, (−)−, and racemic camphorsulfonic acid.

Experimental methods for measuring optical rotatory dispersion: Survey and outlook

“…Multiphoton ORD measurements were reported in 1987 37 for 10% aqueous solutions of camphorsulfonic acid in the 450-470 nm region with an excimer-pumped dye laser and an optical null analyzer. In 1995, Kliger and coworkers 38 applied the Keston method to measure ORD changes into the nanosecond time scale.…”

Theory, calculation and observation of nonlinear optical activity in chiral molecules

“…Polarimeters and pulsed lasers were first used in single-beam experiments to measure NLORD in solutions of chiral molecules by Gedanken and Tamir. 44 They studied solutions of (+)-and (À)-camphorsulfonic acid (CSA) at wavelengths between 456 and 470 nm. A lens was used to focus the light at the center of the sample.…”

Characterization of intensity-dependent optical rotation phenomena in chiral molecules in solution

“…We have described a measurement of two-photon optical rotation in uridine in a previous paper 12 and Gedanken and Tamir 13 have claimed to observe a three-photon effect in camphorsulfonic acid. We have described a measurement of two-photon optical rotation in uridine in a previous paper 12 and Gedanken and Tamir 13 have claimed to observe a three-photon effect in camphorsulfonic acid.…”

“…13 It is a bicyclic, saturated alcohol with molecular formula C 10 H 18 O. Borneol is structurally similar to camphorsulfonic acid ͑CSA͒, a chiral molecule that had been studied in an earlier search for molecular NLOR.…”