A Modification of Jamin's Interferometer

Yoshichika Seki, Masaaki Kitaguchi, H. Funahashi +4 more

We are developing large‐dimensional cold‐neutron interferometers with multilayer mirrors in order to investigate small interactions. In particular Jamin type interferometers composed of wide‐gapped “BSE”s, which divide the beam completely, can realize the precision measurement of topological Aharonov‐Casher effect. We have made a prototype with 200 μm gapped BSEs and confirmed the spatial separation of its two paths at monochromatic cold‐neutron beamline MINE2 on JRR‐3M reactor in JAEA.

Peter Hawkes, Erwin K. Kasper

Frank V. Kowalski, W. T. Hill, ARTHUR L. SCHAWLOW

The background in saturation spectroscopy is decreased by balancing the probe beam, in amplitude and phase, against a second probe, using a configuration like a Jamin interferometer. This improves the signal-to-noise ratio. If the phase is adjustable to provide best balance while the laser is tuned, the signal is proportional to the square of the absorption, and the line width is accordingly reduced.

Oleg L. Antipov, A.S. Kuzhelev, Dmitry V. Chausov +3 more

Ti investigate the real part of resonant susceptibility and refractive index grating formation in inverted Nd:YAGr the authors used a low-noise Jamin-Lebedev interferometer to measure the refractive index of the changes due to energy state changes in the Nd population.

Lawrence N. Mertz