Abstract

A circularly polarized, monochromatic laser beam is focused into a Raman cell, which contains hydrogen to generate rotational stimulated Raman emission. After linear polarization, this two-color (separated by 587 cm⁻¹) laser beam is focused several times into a second Raman cell that is filled with hydrogen to generate a multifrequency laser emission. Many rotational and vibrational lines are generated efficiently by this multipass effect. Eighteen colors that are quasi equally spaced with a rather flat intensity distribution are generated throughout the entire visible region. The present multifrequency laser emission may be advantageously used for illumination in a higher-grade display, such as a laser light show.

© 1995 Optical Society of America

Multifrequency laser emission generated by two-color stimulated Raman effect using a single-frequency laser beam and a dye-Raman composite resonator

Totaro Imasaka, Seiichi Yamanishi, Shuichi Kawasaki, and Nobuhiko Ishibashi
Appl. Opt. 32(33) 6633-6637 (1993)

Continuously tunable laser emission from the deep ultraviolet to the near infrared generated by a single optical system

Totaro Imasaka, Toshiyuki Higashijima, Shuichi Kawasaki, and Nobuhiko Ishibashi
Appl. Opt. 29(12) 1727-1729 (1990)

Generation of vibrational and rotational emissions by four-wave Raman mixing using an ultraviolet femtosecond pump beam

Yoshiya Irie and Totaro Imasaka
Opt. Lett. 20(20) 2072-2074 (1995)

Quantitative measurement of the phase locking of highly repetitive ultrashort optical pulses generated by a multifrequency continuous-wave Raman laser

Shin-ichi Zaitsu and Totaro Imasaka
Appl. Opt. 49(9) 1586-1592 (2010)

Efficient generation of a three-primary-color laser from the second-harmonic emission of a Nd:YAG laser

Teppei Sotoda, Shin-ichi Zaitsu, and Totaro Imasaka
Appl. Opt. 46(15) 3001-3006 (2007)