A diode laser system for spectroscopy of the ultranarrow transition in ytterbium atoms

2008 ◽  
Vol 91 (1) ◽  
pp. 57-60 ◽  
Author(s):  
A. Yamaguchi ◽  
S. Uetake ◽  
Y. Takahashi
Keyword(s):  
Diode Laser ◽  
Laser System

Stabilized diode-laser system with grating feedback anf frequency-offset locking

1993 ◽  
Vol 102 (3-4) ◽  
pp. 251-256 ◽  
Author(s):  
Jeffery J. Maki ◽  
N.S. Campbell ◽  
C.M. Grande ◽  
R.P. Knorpp ◽  
D.H. McIntyre
Keyword(s):  
Diode Laser ◽  
Laser System ◽  
Frequency Offset

Noble metal nanoparticles on quartz supports as SERS substrates excited by a diode laser system for SERDS

2012 ◽  
Author(s):  
Robert Ossig ◽  
Yong-Hyok Kwon ◽  
Heinz-Detlef Kronfeldt ◽  
Frank Träger ◽  
Frank Hubenthal
Keyword(s):  
Metal Nanoparticles ◽  
Diode Laser ◽  
Noble Metal ◽  
Laser System ◽  
Noble Metal Nanoparticles ◽  
Sers Substrates

scholarly journals In Vitro Photothermal Destruction of Cancer Cells Using Gold Nanorods and Pulsed-Train Near-Infrared Laser

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Jui-Teng Lin ◽  
Yueh-Sheng Chiang ◽  
Guang-Hong Lin ◽  
Hsinyu Lee ◽  
Hsia-Wei Liu
Keyword(s):  
Cancer Cells ◽  
Diode Laser ◽  
Near Infrared ◽  
Irradiation Time ◽  
Laser System ◽  
Gold Nanorod ◽  
Near Ir ◽  
Laser Heated ◽  
Train System

We present a novel pulsed-train near-IR diode laser system with real-time temperature monitoring of the laser-heated cancer cell mixed in gold nanorod solution. Near-IR diode laser at 808 nm matching the gold nanorod absorption peak (with an aspect ratio about 4.0) was used in this study. Both surface and volume temperatures were measured and kept above 43°C, the temperature for cancer cells destruction. The irradiation time needed in our pulsed-train system with higher laser fluence for killing the cancel cells is about 1–3 minutes, much shorter than conventional methods (5–10 minutes). Cell viabilities in gold nanorod mixed and controlled solutions are studied by green fluorescence.

Highly modular high-brightness diode laser system design for a wide application range

2015 ◽  
Author(s):  
Haro Fritsche ◽  
Bastian Kruschke ◽  
Ralf Koch ◽  
Fabio Ferrario ◽  
Holger Kern ◽  
...  
Keyword(s):  
System Design ◽  
Diode Laser ◽  
Laser System ◽  
High Brightness ◽  
Application Range

scholarly journals A diode laser system for heating minerals for (U-Th)/He chronometry

2006 ◽  
Vol 7 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jurgen P. T. Foeken ◽  
Finlay M. Stuart ◽  
Katherine J. Dobson ◽  
Cristina Persano ◽  
David Vilbert
Keyword(s):  
Diode Laser ◽  
Laser System

A Micromachined Silicon Flexure for Tunable External Cavity Diode Laser

2007 ◽  
Author(s):  
Ho-Chiao Chuang ◽  
Ricardo Jime´nez-Marti´nez ◽  
Simon Braun ◽  
Dana Z. Anderson ◽  
Victor M. Bright
Keyword(s):  
Diode Laser ◽  
Optical Feedback ◽  
Laser System ◽  
External Cavity ◽  
Threshold Current ◽  
Laser Frequency ◽  
External Cavity Diode Laser ◽  
Laser Design ◽  
Current Reduction ◽  
Reflection Grating

We present a novel external cavity diode laser design developed for atomic physics which employs a micromachined silicon flexure to sweep the laser frequency and a volume holographic reflection grating (VHG) to provide the optical feedback. The advantages of using a silicon flexure are its simple microfabrication process and reduction of the overall size of the laser system. The results demonstrate an optimized threshold current reduction from 59mA to 43mA, a frequency sweeping range of 2.069 GHz, and 87Rb, 85Rb (Rubidium) D2 line absorption at 780 nm.

scholarly journals Stabilizing diode laser to 1 Hz-level Allan deviation with atomic spectroscopy for Rb four-level active optical frequency standard

2019 ◽  
Vol 125 (11) ◽  
Author(s):  
Pengyuan Chang ◽  
Shengnan Zhang ◽  
Haosen Shang ◽  
Jingbiao Chen
Keyword(s):  
Diode Laser ◽  
Noise Suppression ◽  
Laser System ◽  
Frequency Standard ◽  
Atomic Spectroscopy ◽  
Frequency Noise ◽  
Optical Frequency ◽  
Transition Line ◽  
Allan Deviation ◽  
Optical Frequency Standard

Abstract We achieve a compact ultra-stable 420 nm blue diode laser system by immediately stabilizing the laser on the hyperfine transition line of Rb atom. The Allan deviation of the residual error signal reaches 1 Hz-level Allan deviation within 1 s averaging time, and the fractional frequency Allan deviation is $$1.4\times 10^{-15}/\sqrt{\tau }$$1.4×10-15/τ, which shows the best result of frequency-stabilized lasers based on the atomic spectroscopy without Pound–Drever–Hall (PDH) system. The signal-to-noise ratio of the atomic spectroscopy is evaluated to be 3,000,000 from the Allan deviation formula, which is the highest record, to the best of our knowledge. The frequency noise suppression characterization is demonstrated and the maximal noise suppression can be near 40 dB at 6 Hz. As a good candidate of pumping source, the ultra-stable 420 nm diode laser is successfully used in our Rb four-level active optical frequency standard system. The method can be easily extended to other wavelengths ultra-stable lasers with a Allan deviation of $$10^{-15}$$10-15 level retaining an atomic reference with low cost and low complexity while in the absence of an expensive and complicated PDH system.

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