Spatial mode control of infrared radiation generated by difference frequency in periodically-poled crystals

Author

Giusfredi, G. ; Mazzotti, D. ; Cancio, P. ; De Natale, P.

Author_Institution

Ist. Nazionale di Ottica, Florence, Italy

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. We have recently built a source that emits infrared radiation, tunable around 4.3 /spl mu/m, by difference-frequency-generation (DFG) in periodically-poled LiNbO/sub 3/. High resolution spectroscopic applications, like sub-Doppler spectroscopy, require a full control of the infrared spatial mode, during frequency scans. In spite of the difficulties inherent to recording of images at 4.3 /spl mu/m; we experimentally observed pattern formation as a function of several parameters, like input wavelengths, crystal temperature, and alignment of input beams with respect to the crystal.

Keywords

dielectric polarisation; infrared sources; lithium compounds; optical frequency conversion; optical materials; spectroscopic light sources; 4.3 mum; LiNbO/sub 3/; crystal temperature; difference frequency mixing; difference-frequency-generation; frequency scans; high resolution spectroscopic applications; infrared radiation generation; infrared spatial mode; input beams alignment; input wavelengths; observed pattern formation; periodically-poled; periodically-poled crystals; spatial mode control; sub-Doppler spectroscopy; Frequency; Pattern formation; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2000. Conference Digest. 2000 International

Conference_Location

Nice, France

Print_ISBN

0-7803-6318-3

Type

conf

DOI

10.1109/IQEC.2000.907812

Filename

907812