FEMTOLITHO · Ultrahigh resolution femtosecond laser lithography for applications in life sciences and display technologies
7РП — „Хора“ (Действия „Мария Кюри“)
- Период
- 2015-02-12 → 2017-10-03
- Финансиране от ЕС
- 216 953 €
- Участници
- 1
- Схема
- MC-IEF
Линиите свързват координатора с партньорите.
Накратко на български
Фемтосекундният лазер се използва за създаване на микроскопични 3D структури с изключително висока разделителна способност. Тези технологии помагат за развитието на дисплеи и приложения в науките за живота.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Ultrahigh resolution femtosecond laser lithography for applications in life sciences and display technologies
In Feb 2015 I began the Marie Curie IEF project FemtoLitho, in the laboratories of Prof. Maria Farsari’s (mfarsari@iesl.forth.gr) group at ULF-FORTH in Heraklion, Crete (Greece). The main experimental technique to meet the goals of FemtoLitho is two photon polymerization (2PP), where focused femtosecond laser pulses are used to form 3D micro and nanostructures in photoresists. For the fabrication of devices using the 2PP technique, an excellent automation of experimental variables and motion control is needed. The Farsari group has developed a microprocessing system consisting of the femtosecond laser with automated power, polarization and focus plane control in addition to motion control of the high resolution stages. These elements of control during an experiment enable better reproducibility but also a much faster efficiency of experiments. While at FORTH, I was trained on these important skills and methods. The 2PP laser system developed by the Farsari group is particularly important as it allows one to conceive a 3D structure of arbitrary geometry by designing it first using a CAD software program. This gives the flexibility to fabricate novel and complex 3D structures which would be particularly useful for FemtoLitho. The experience gained working alongside Prof. Maria Farsari was invaluable to my development as a researcher and a person. I will greatly benefit from these important experiences on the next chapter in his career as a researcher at Politecnico di Milano, where I was recently awarded the prestigious SIR grant worth €500,000, the Italian equivalent of the ERC Starting Grant. Thanks to the Marie Curie experience, I am now in a great position to be one of the future scientific leaders in Europe.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Femtosecond laser fabrication by nonlinear laser lithography is a powerful method for the fabrication of high resolution, 3D structures. This laser fabrication method allows the creation of 3D structures with sub-diffraction limit resolution, an impossible task for traditional lithographic techniques. In femtosecond laser lithography, starting liquid photoresists are converted into solid phase upon exposure to femtosecond laser light. Standard femtosecond laser lithography enables submicrometer resolution but in many applications it is desirable to achieve even finer resolutions. Applications such as photonic crystals for visible wavelength biosensors, optical-wavelength metamaterials showing negative refraction both require sub 100-nm resolution. Such resolution requirements are not achievable with traditional femtosecond laser fabrication techniques. As the main objective, we will study two different strategies to deplete two photon absorption in the outer region of the laser-material interaction volume to greatly improve the resolution of femtosecond laser lithography. First, we will adapt a method based on stimulated emission depletion, which has shown resolutions of less than 10 nm in microscopy. Secondly, we will seek to optimize quencher diffusion to enhance the resolution possible by femtosecond laser lithography. We will apply these carefully tuned laser-material interactions to form ultrahigh resolution 3D microstructures to study their influence on two elements of crucial importance in life and in science and technology: stem cells and liquid crystal molecules.
Оригинален текст от CORDIS (на английски).
Участници
- IDRYMA TECHNOLOGIAS KAI EREVNAS · IRAKLEIOКоординаторГърция
Връзки
Данни: CORDIS, © Европейски съюз