Investigation of gold-coated bare fiber probe for in situ intra-vitreous coherence domain optical imaging and sensing [0.03%]
基于裸光纤探针的金涂层原位玻璃体内光学断层成像与传感研究
J-H Han,I K Ilev,D-H Kim et al.
J-H Han et al.
We have investigated the usage of gold-plated bare fiber probes for in situ imaging of retinal layers and surrounding ocular tissues using time-domain common-path optical coherence tomography. The fabricated intra-vitreous gold-plated micro...
Optimal strategy for trapping single fluorescent molecules in solution using the ABEL trap [0.03%]
利用ABEL陷阱捕获溶液中单个荧光分子的最佳策略
Q Wang,W E Moerner
Q Wang
Trapping of 10-nm-sized single fluorescent bio-molecules in solution has been achieved using high-speed position sensing and electrokinetic feedback forces in the Anti-Brownian ELectrokinetic (ABEL) trap. The high diffusion coefficient of s...
K(alpha) x-ray emission characterization of 100 Hz, 15 mJ femtosecond laser system with high contrast ratio [0.03%]
高对比度百赫兹飞秒激光装置的K(alpha)特性研究
S Fourmaux,C Serbanescu,R E Kincaid et al.
S Fourmaux et al.
We report K(alpha) x-ray production with a high energy (110 mJ per pulse at 800 nm before compression/15 mJ at 400 nm after compression), high repetition rate (100 Hz), and high pulse contrast (better than 10(-9) at 400 nm) laser system. To...
13CO2/12CO2 isotopic ratio measurements using a difference frequency-based sensor operating at 4.35 micrometers [0.03%]
基于4.35微米差频激光传感器的13CO2/12CO2同位素比率测量
M Erdelyi,D Richter,F K Tittel
M Erdelyi
A portable modular gas sensor for measuring the 13C/12C isotopic ratio in CO2 with a precision of 0.8%(+/-1 sigma) was developed for volcanic gas emission studies. This sensor employed a difference frequency generation (DFG)-based spectrosc...
Chemical sensing with pulsed QC-DFB lasers operating at 15.6 micrometers [0.03%]
基于脉冲QC-DFB激光器的化学传感技术(波长15.6μm)
A A Kosterev,R F Curl,F K Tittel et al.
A A Kosterev et al.
Pulsed thermoelectrically cooled QC-DFB lasers operating at 15.6 micrometers were characterized for spectroscopic gas sensing applications. A new method for wavelength scanning based on repetition rate modulation was developed. A non-wavele...
Development of a tunable mid-IR difference frequency laser source for highly sensitive airborne trace gas detection [0.03%]
一种可调谐中红外差频激光源的研制及其痕量气体探测应用研究
D Richter,A Fried,B P Wert et al.
D Richter et al.
The development of a compact tunable mid-IR laser system at 3.5 micrometers for quantitative airborne spectroscopic trace gas absorption measurements is reported. The mid-IR laser system is based on difference frequency generation (DFG) in ...
Development of a cw-laser-based cavity-ringdown sensor aboard a spacecraft for trace air constituents [0.03%]
基于cw激光的机载腔衰荡传感器用于痕量气体探测
A R Awtry,J H Miller
A R Awtry
The progress in the development of a sensor for the detection of trace air constituents to monitor spacecraft air quality is reported. A continuous-wave (cw), external-cavity tunable diode laser centered at 1.55 micrometers is used to pump ...
Ambient formaldehyde detection with a laser spectrometer based on difference-frequency generation in PPLN [0.03%]
基于PPLN中差频生成的激光光谱仪检测甲醛
D Rehle,D Leleux,M Erdelyi et al.
D Rehle et al.
A laser spectrometer based on difference-frequency generation in periodically poled LiNbO3 (PPLN) has been used to quantify atmospheric formaldehyde with a detection limit of 0.32 parts per billion in a given volume (ppbV) using specificall...
Applications of Kalman filtering to real-time trace gas concentration measurements [0.03%]
卡尔曼滤波在实时痕量气体浓度测量中的应用
D P Leleux,R Claps,W Chen et al.
D P Leleux et al.
A Kalman filtering technique is applied to the simultaneous detection of NH3 and CO2 with a diode-laser-based sensor operating at 1.53 micrometers. This technique is developed for improving the sensitivity and precision of trace gas concent...
Detection of biogenic CO production above vascular cell cultures using a near-room-temperature QC-DFB laser [0.03%]
用准连续分布式反馈量子级联激光器在接近室温条件下检测血管细胞培养物上方的生物源一氧化碳生成量
A A Kosterev,F K Tittel,W Durante et al.
A A Kosterev et al.
We report the first application of pulsed, near-room-temperature quantum cascade laser technology to the continuous detection of biogenic CO production rates above viable cultures of vascular smooth muscle cells. A computer-controlled seque...