Subpicosecond accumulated photon echoes have been observed in 1,3,3,1′,3′,3′-hexamethyl-2,2′-indotricarbocyanine iodide embedded in polyvinyl alcohol at 10 K by using a cw multimode diode laser. The temporal resolution of this measurement is determined by the width of the overall spectral envelope of the diode laser. The dephasing time of 40 psec derived by the echo decay curve is in good agreement with the persistent hole width.
© 1989 Optical Society of America
Original Manuscript: December 12, 1988
Manuscript Accepted: March 30, 1989
Published: June 15, 1989
Hiroki Nakatsuka, Ryuzi Yano, Yoshinori Matsumoto, and Kazuki Inouye, "Subpicosecond accumulated photon echoes using a continuous-wave multimode diode laser," Opt. Lett. 14, 633-635 (1989)