A new echo phenomenon in laser induced population grating in gases - LIPG echo

Yukio Fukuda, Koichi Yamada, Tsuneo Hashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the observation of a new type of echo produced by applying two intersecting light pulses with different angles (θ and θ′) at t = 0 and τ. The laser induced population grating (LIPG) created by the first excitation and degraded due to the thermal motion of atoms is reformed by the second excitation at te= τ+mτ (αn-M), where m and n are integers and α sin ( θ 2)=sin ( θ′ 2). The experiment was performed in the ground state 3 2S 1 2 of atomic sodium vapor. This echo is not related to the atomic coherence but to the population distribution, and has novel feature for studying velocity-changing collisions.

Original languageEnglish
Pages (from-to)299-302
Number of pages4
JournalOptics Communications
Volume37
Issue number4
DOIs
Publication statusPublished - 1981 May 15

Fingerprint

Population distribution
Gas lasers
gas lasers
Ground state
echoes
Sodium
Vapors
gratings
sodium vapor
Atoms
Lasers
excitation
integers
lasers
Experiments
collisions
ground state
pulses
atoms
Hot Temperature

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

A new echo phenomenon in laser induced population grating in gases - LIPG echo. / Fukuda, Yukio; Yamada, Koichi; Hashi, Tsuneo.

In: Optics Communications, Vol. 37, No. 4, 15.05.1981, p. 299-302.

Research output: Contribution to journalArticle

Fukuda, Yukio ; Yamada, Koichi ; Hashi, Tsuneo. / A new echo phenomenon in laser induced population grating in gases - LIPG echo. In: Optics Communications. 1981 ; Vol. 37, No. 4. pp. 299-302.
@article{5df4e7cfa2f54b718fbb3b6a1e58292d,
title = "A new echo phenomenon in laser induced population grating in gases - LIPG echo",
abstract = "We report the observation of a new type of echo produced by applying two intersecting light pulses with different angles (θ and θ′) at t = 0 and τ. The laser induced population grating (LIPG) created by the first excitation and degraded due to the thermal motion of atoms is reformed by the second excitation at te= τ+mτ (αn-M), where m and n are integers and α sin ( θ 2)=sin ( θ′ 2). The experiment was performed in the ground state 3 2S 1 2 of atomic sodium vapor. This echo is not related to the atomic coherence but to the population distribution, and has novel feature for studying velocity-changing collisions.",
author = "Yukio Fukuda and Koichi Yamada and Tsuneo Hashi",
year = "1981",
month = "5",
day = "15",
doi = "10.1016/0030-4018(81)90290-X",
language = "English",
volume = "37",
pages = "299--302",
journal = "Optics Communications",
issn = "0030-4018",
publisher = "Elsevier",
number = "4",

}

TY - JOUR

T1 - A new echo phenomenon in laser induced population grating in gases - LIPG echo

AU - Fukuda, Yukio

AU - Yamada, Koichi

AU - Hashi, Tsuneo

PY - 1981/5/15

Y1 - 1981/5/15

N2 - We report the observation of a new type of echo produced by applying two intersecting light pulses with different angles (θ and θ′) at t = 0 and τ. The laser induced population grating (LIPG) created by the first excitation and degraded due to the thermal motion of atoms is reformed by the second excitation at te= τ+mτ (αn-M), where m and n are integers and α sin ( θ 2)=sin ( θ′ 2). The experiment was performed in the ground state 3 2S 1 2 of atomic sodium vapor. This echo is not related to the atomic coherence but to the population distribution, and has novel feature for studying velocity-changing collisions.

AB - We report the observation of a new type of echo produced by applying two intersecting light pulses with different angles (θ and θ′) at t = 0 and τ. The laser induced population grating (LIPG) created by the first excitation and degraded due to the thermal motion of atoms is reformed by the second excitation at te= τ+mτ (αn-M), where m and n are integers and α sin ( θ 2)=sin ( θ′ 2). The experiment was performed in the ground state 3 2S 1 2 of atomic sodium vapor. This echo is not related to the atomic coherence but to the population distribution, and has novel feature for studying velocity-changing collisions.

UR - http://www.scopus.com/inward/record.url?scp=0019566043&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019566043&partnerID=8YFLogxK

U2 - 10.1016/0030-4018(81)90290-X

DO - 10.1016/0030-4018(81)90290-X

M3 - Article

AN - SCOPUS:0019566043

VL - 37

SP - 299

EP - 302

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

IS - 4

ER -