Qi, P., Qian, W., Guo, L., Xue, J., Zhang, N., Wang, Y., Zhang, Z., Zhang, Z., Lin, L., Sun, C., Zhu, L., & Liu, W. (2022). Sensing with Femtosecond Laser Filamentation. Sensors, 22(18), 7076. https://doi.org/10.3390/s22187076

Show mathematically how the frequency doubled term arises in SHG

Qi, P.; Qian, W.; Guo, L.; Xue, J.; Zhang, N.; Wang, Y.; Zhang, Z.; Zhang, Z.; Lin, L.; Sun, C.; et al. Sensing with Femtosecond Laser Filamentation. Sensors 2022, 22, 7076. https://doi.org/10.3390/s22187076

Abstract: Femtosecond laser filamentation is a unique nonlinear optical phenomenon when high-power ultrafast laser propagation in all transparent optical media. During filamentation in the atmosphere, the ultrastrong field of 1013–1014 W/cm2 with a large distance ranging from meter to kilometers can effectively ionize, break, and excite the molecules and fragments, resulting in characteristic fingerprint emissions, which provide a great opportunity for investigating strong-field molecules interaction in complicated environments, especially remote sensing. Additionally, the ultrastrong intensity inside the filament can damage almost all the detectors and ignite various intricate higher order nonlinear optical effects. These extreme physical conditions and complicated phenomena make the sensing and controlling of filamentation challenging. This paper mainly focuses on recent research advances in sensing with femtosecond laser filamentation, including fundamental physics, sensing and manipulating methods, typical filament-based sensing techniques and application scenarios, opportunities, and challenges toward the filament-based remote sensing under different complicated conditions. Keywords: femtosecond laser; filamentation; remote sensing

Chirped pulse amplification Nobel Prize

MedPrime Technologies has been manufacturing for many years.  During this time, we have won several awards and filed multiple patents for our innovative technology.

Phase matching in nonlinear optics

Qi P, Qian W, Guo L, Xue J, Zhang N, Wang Y, Zhang Z, Zhang Z, Lin L, Sun C, et al. Sensing with Femtosecond Laser Filamentation. Sensors. 2022; 22(18):7076. https://doi.org/10.3390/s22187076

CILIKA’S portable microscope is the battery-powered compact version of our microscopes for your field visits, inter-state seminars, lectures and more. With CILIKA you have the  option of carrying your microscope on your travels and work from remote areas without electricity.

Laserchirp definition

The world’s first smartphone integrated microscope, our CILIKA™ Portable is the perfect choice for work-from-home and extensive traveling. Its unmatched high-quality imaging, battery backup and lightweight body with a travel bag makes it the undisputable choice for field visits, medical camps and seminars.

Digital microscopes are designed for quick, high-quality images with quality control, failure analysis, and documentation. These images must be calibrated, which means that measurement data taken from the image, such as dimensions, are correctly quantified and accurate.  Suitable software enables easy analysis of images.

Laserpulse stretching

Qi, Pengfei, Wenqi Qian, Lanjun Guo, Jiayun Xue, Nan Zhang, Yuezheng Wang, Zhi Zhang, Zeliang Zhang, Lie Lin, Changlin Sun, and et al. 2022. "Sensing with Femtosecond Laser Filamentation" Sensors 22, no. 18: 7076. https://doi.org/10.3390/s22187076

Nonlinear optomechanics

Editor’s Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal.

Your choice of microscope is highly dependent on its use. Once you determine whether it is to be used in a lab, an educational setting, or by pathology students, you’ll be able to determine the most important characteristics.

CILIKA microscopes have the bestdigital setup for telepathology Professionals using CILIKA can live stream whole slides in real-time for second opinions and diagnosis with other pathologists or doctors as well as capture, store in the cloud and share high-resolution images and videos when needed.

It takes around 3-4 hours to charge the CILIKA Portable microscope 100%, and it has up to 13-14 hours of battery backup.

Qi, Pengfei, Wenqi Qian, Lanjun Guo, Jiayun Xue, Nan Zhang, Yuezheng Wang, Zhi Zhang, Zeliang Zhang, Lie Lin, Changlin Sun, and et al. 2022. "Sensing with Femtosecond Laser Filamentation" Sensors 22, no. 18: 7076. https://doi.org/10.3390/s22187076

Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive positive feedback from the reviewers.

Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.

Qi P, Qian W, Guo L, Xue J, Zhang N, Wang Y, Zhang Z, Zhang Z, Lin L, Sun C, et al. Sensing with Femtosecond Laser Filamentation. Sensors. 2022; 22(18):7076. https://doi.org/10.3390/s22187076

CILIKA microscopes are designed to perfection keeping in mind the long-term occupational hazards of using microscopes. Our digital microscopes are ergonomically designed to ensure comfort and care and deliver the best results at the same time.

Nonlinear susceptibility tensor

Femtosecondlaser filament

MedPrime Technologies is a medical device company, dedicated to developing the digital microscopes in the field of future-ready technology pertaining to pathology and telepathology arenas.

When you buy a product from MedPrime Technologies, you can expect professional after-sales service and a fully trained staff to help with both- the product and technical knowledge.

Qi, P.; Qian, W.; Guo, L.; Xue, J.; Zhang, N.; Wang, Y.; Zhang, Z.; Zhang, Z.; Lin, L.; Sun, C.; et al. Sensing with Femtosecond Laser Filamentation. Sensors 2022, 22, 7076. https://doi.org/10.3390/s22187076

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

With CILIKA’s patented Trueviev technology, you can capture 100% of the circular field exactly as the view, unlike the conventional microscope’s 50% reduced view. Observe and share exactly what you want or simply the whole field.

Qi, P., Qian, W., Guo, L., Xue, J., Zhang, N., Wang, Y., Zhang, Z., Zhang, Z., Lin, L., Sun, C., Zhu, L., & Liu, W. (2022). Sensing with Femtosecond Laser Filamentation. Sensors, 22(18), 7076. https://doi.org/10.3390/s22187076

Sync your CILIKA with Google Drive, with CILIKA’s one-touch cloud storage safety, and access all your data at the tip of your fingers through our app across all your devices. Click, store and share using WhatsApp, Telegram, Gmail, Google Drive and more with CILIKA.