Prevent optical damage to the windows of the cell

Assignment Help Civil Engineering

Reference no: EM131198678

Optical damage considerations and the study of SBS. The threshold intensity for optical damage to fused silica is approximately 3 GW/cm2 and is of the same order of magnitude for most optical materials. (See, for example, Lowdermilk and Milam, 1981.) Use this fact and the value of the SBS gain factor at line center quoted in Table 9.3.1 to determine the minimum length of a cell utilizing fused-silica windows that can be used to excite SBS in acetone with a collimated laser beam. Assume that the laser intensity is restricted to 50% of the threshold intensity as a safety factor to avoid damage to the windows. If the laser pulse length is 20 nsec, what is the minimum value of the laser pulse energy per unit area that can be used to excite SBS? (SBS is often excited by tightly focused laser beams rather than by collimated beams to prevent optical damage to the windows of the cell

Reference no: EM131198678

Questions Cloud

Describe three best practices for securing the laptops : Demonstrate the ability to discuss the migration phases and considerations in a client operating system installation to include virtual machines and the cloud infrastructure.

What is the after tax cost of the common stock : What is the after-tax cost of the mortgage bonds? - What is the after-tax cost of the common stock? - What is the weighted average cost of capital for Schipper?

Develop the identity management and security awareness plan : Utilizing your comprehensive security plan outline as a guide, develop the identity management and security awareness training plan strategy for the organization. Upload the assignment in Microsoft Word format.

What would be expected as a registered nurse : Thinking about what would be expected as a registered nurse working in a secure dementia care facility, you are planning care for Mrs M who is now in the middle to later stages of dementia.

Prevent optical damage to the windows of the cell : what is the minimum value of the laser pulse energy per unit area that can be used to excite SBS? (SBS is often excited by tightly focused laser beams rather than by collimated beams to prevent optical damage to the windows of the cell

What types of variances are found on cost center reports : Explain how exception reporting would be invaluable to the manager of a credit department.- What types of variances are found on cost center reports?

Describe responsibility for a chief financial officer : FIN200 Assignment Questions. List and briefly describe the three general areas of responsibility for a chief financial officer (CFO) of a selected non-financial company which is listed on Australian Stock Exchange (ASX)

Investigate volkswagen performance : Using a search engine of your own choosing, investigate Volkswagen's performance over the past two years. Write a brief summary of their fortunes and misfortunes.

What are the internal loads supported at the shoulders : This 140 lb gymnast supports himself with arms stretched out in the iron-cross position shown. Say the arms each weigh 10% of the body weight (and have approximately uniform distribution of mass), and that each ring exerts only an upward force on ..

User Account

All Pages