Powerful fast triggerable 6 μm laser for the muonic hydrogen 2S-Lamb shift experiment

被引：33

作者：

Antognini, A ^{[1
]}

Amaro, FD

Biraben, F

Cardoso, JMR

Conde, CAN

Covita, DS

Dax, A

Dhawan, S

Fernandes, LMP

Hänsch, TW

Hughes, VW

Huot, O

Indelicato, P

Julien, L

Knowles, PE

Kottmann, F

Liu, YW

Lopes, JAM

Ludhova, L

Monteiro, CMB

Mulhauser, F

Nez, F

Perry, BN

Pohl, R

Rabinowitz, P

dos Santos, JMF

Schaller, LA

Schwob, C

Taqqu, D

Veloso, JFCA

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Univ Coimbra, Dept Fis, PT-3000 Coimbra, Portugal

[3] UPMC, ENS, Lab Kastler Brossel, F-75252 Paris, France

[4] CNRS, F-75252 Paris, France

[5] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[6] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[7] ETH Honggerberg, Lab Hochenergiephys, CH-8093 Zurich, Switzerland

[8] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[9] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[10] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[11] ExxonMobil Res & Engn Co, Annandale, NJ 08801 USA

来源：

OPTICS COMMUNICATIONS | 2005年 / 253卷 / 4-6期

关键词：

rms proton charge radius; nuonic hydrogen; Lamb shift; high energy 6 mu m laser; Raman shift in hydrogen; multipass 6 mu m cavity; frequency chirp;

D O I：

10.1016/j.optcom.2005.04.079

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser spectroscopy of the 2S-Lamb shift in muonic hydrogen (mu(-)p) is being performed at the Paul Scherrer Institute, Switzerland, to determine the root-mean-square (rms) proton charge radius with 10(-3) precision. A multistage laser system has been developed which provides 0.2 mJ pulse energy tunable at 6 mu m wavelength. An excimer pumped dye laser is used to drive a titanium sapphire (Ti:Sa) system whose wavelength is then shifted to 6 mu m using a multipass Raman cell filled with hydrogen. The short cavity length of the Ti:Sa oscillator (7 cm) guarantees a pulse width of 7 ns and a pulse energy of 1.2 mJ at 708 nm, a wavelength controlled by a mono-mode cw-Ti:Sa laser. The laser is triggered at a maximum 60 s(-1) repetition rate by muons entering the apparatus at random times. A new type of multipass cavity has been developed to provide a homogeneously illuminated volume (25 x 7 x 170 mm(3)). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：362 / 374

页数：13

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