Results 91 to 100 of about 53,726 (323)

Mannose‐Modified Cationic Liposome‐Based mRNA Therapeutics for Improved Triple‐Negative Breast Cancer Immunotherapy

open access: yesAdvanced NanoBiomed Research, EarlyView.
Schematic illustration of mTEM8‐loaded cationic liposome (cLipo‐Man/mTEM8) therapeutics for improved triple‐negative breast cancer immunotherapy. Despite triple‐negative breast cancer (TNBC) is the most heterogeneous and aggressive subtype of breast cancer, immunotherapy is emerging as a promising therapy.
Kexin Deng   +10 more
wiley   +1 more source

An ultra-stable high-power optical frequency comb

open access: yesAPL Photonics
Optical frequency combs are typically generated in the near-infrared wavelength range, where many mode-locked lasers operate. Nonlinear frequency conversion can then be used to extend optical frequency metrology to other spectral regions, such as the ...
Fabian Schmid   +6 more
doaj   +1 more source

Frequency combs induced by optical feedback and harmonic order tunability in quantum cascade lasers

open access: yesAPL Photonics, 2023
This study investigates the interaction between frequency combs and optical feedback effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new phenomena arising from the interplay between comb generation and feedback.
Carlo Silvestri   +3 more
doaj   +1 more source

Ultralow Noise Optical Frequency Combs [PDF]

open access: yesIEEE Journal of Selected Topics in Quantum Electronics, 2018
The invention of optical frequency combs (OFCs) based on femtosecond (fs) mode-locked lasers has merged laser based spectroscopy with fs-laser technology. OFCs have triggered quantum leaps of advancement in photonics, physics, astronomy, and engineering, while also lending themselves to applications in medical and environmental fields.
Mamoru Endo   +2 more
openaire   +1 more source

An Alternative Approach to Spontaneous Photon Triplets Generation

open access: yesAdvanced Physics Research, EarlyView.
Day by day, communication and computing technologies are progressing at a lightning speed, which is particularly true of the quantum version of these technologies (QIST). Increasingly, these technologies are emerging from unusual and sometimes bewildering quantum optical effects, which are based on exotic quantum physical theories.
Serge Gauvin
wiley   +1 more source

Hybrid Electro-Optically Modulated Microcombs

open access: yes, 2012
Optical frequency combs based on mode-locked lasers have proven to be invaluable tools for a wide range of applications in precision spectroscopy and metrology.
Del'Haye, Pascal   +2 more
core   +1 more source

Compact Terahertz Dual‐Comb Spectroscopy with All‐Digitally Generated Adaptive Clock

open access: yesAdvanced Physics Research, EarlyView.
This work demonstrates a compact terahertz dual‐comb spectrometer using an all‐digital adaptive clock generated on an FPGA. This system achieves high precision across 1.6 THz, resolves over 24 000 comb lines with kHz resolution, and offers enhanced stability and a simplified architecture compared to analog‐based methods.
Min Li   +8 more
wiley   +1 more source

Photonic chip-based soliton frequency combs covering the biological imaging window

open access: yesNature Communications, 2018
Dissipative Kerr solitons in optical microresonators provide excellent optical frequency comb sources for precision metrology and imaging techniques. Here, Karpov et al.
Maxim Karpov   +4 more
doaj   +1 more source

Absolute frequency measurement of the magnesium intercombination transition $^1S_0 \to ^3P_1$

open access: yes, 2007
We report on a frequency measurement of the $(3s^2)^1S_0\to(3s3p)^3P_1$ clock transition of $^{24}$Mg on a thermal atomic beam. The intercombination transition has been referenced to a portable primary Cs frequency standard with the help of a femtosecond
André Pape   +17 more
core   +1 more source

Quantum-Noise-Limited Optical Frequency Comb Spectroscopy

open access: yesPhysical Review Letters, 2011
We achieve a quantum-noise-limited absorption sensitivity of 1.7/times10$^{-12}$ cm$^{-1}$ per spectral element at 400 s of acquisition time with cavity-enhanced frequency comb spectroscopy, the highest demonstrated for a comb-based technique. The system comprises a frequency comb locked to a high-finesse cavity and a fast-scanning Fourier transform ...
Foltynowicz, Aleksandra   +4 more
openaire   +5 more sources

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